<?xml version="1.0" encoding="UTF-8"?>
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/*
  Copyright (c) 2011+, HL7, Inc.
  All rights reserved.
  
  Redistribution and use in source and binary forms, with or without modification, 
  are permitted provided that the following conditions are met:
  
   * Redistributions of source code must retain the above copyright notice, this 
     list of conditions and the following disclaimer.
   * Redistributions in binary form must reproduce the above copyright notice, 
     this list of conditions and the following disclaimer in the documentation 
     and/or other materials provided with the distribution.
   * Neither the name of HL7 nor the names of its contributors may be used to 
     endorse or promote products derived from this software without specific 
     prior written permission.
  
  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND 
  ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED 
  WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 
  IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, 
  INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 
  NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR 
  PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, 
  WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 
  ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 
  POSSIBILITY OF SUCH DAMAGE.
  

  Generated on Wed, Dec 14, 2022 07:12+1100 for FHIR v5.0.0-snapshot3 

  Note: the schemas &amp; schematrons do not contain all of the rules about what makes resources
  valid. Implementers will still need to be familiar with the content of the specification and with
  any profiles that apply to the resources in order to make a conformant implementation.

-->
<xs:schema xmlns:xs="http://www.w3.org/2001/XMLSchema" xmlns="http://hl7.org/fhir" xmlns:xhtml="http://www.w3.org/1999/xhtml" targetNamespace="http://hl7.org/fhir" elementFormDefault="qualified" version="1.0">
  <xs:include schemaLocation="fhir-base.xsd"/>
  <xs:element name="Citation" type="Citation">
    <xs:annotation>
      <xs:documentation xml:lang="en">The Citation Resource enables reference to any knowledge artifact for purposes of identification and attribution. The Citation Resource supports existing reference structures and developing publication practices such as versioning, expressing complex contributorship roles, and referencing computable resources.</xs:documentation>
    </xs:annotation>
  </xs:element>
  <xs:complexType name="Citation">
    <xs:annotation>
      <xs:documentation xml:lang="en">The Citation Resource enables reference to any knowledge artifact for purposes of identification and attribution. The Citation Resource supports existing reference structures and developing publication practices such as versioning, expressing complex contributorship roles, and referencing computable resources.</xs:documentation>
      <xs:documentation xml:lang="en">If the element is present, it must have either a @value, an @id, or extensions</xs:documentation>
    </xs:annotation>
    <xs:complexContent>
      <xs:extension base="MetadataResource">
        <xs:sequence>
          <xs:element name="url" minOccurs="0" maxOccurs="1" type="uri">
            <xs:annotation>
              <xs:documentation xml:lang="en">An absolute URI that is used to identify this citation record when it is referenced in a specification, model, design or an instance; also called its canonical identifier. This SHOULD be globally unique and SHOULD be a literal address at which an authoritative instance of this summary is (or will be) published. This URL can be the target of a canonical reference. It SHALL remain the same when the summary is stored on different servers.</xs:documentation>
           </xs:annotation>
          </xs:element>
          <xs:element name="identifier" minOccurs="0" maxOccurs="unbounded" type="Identifier">
            <xs:annotation>
              <xs:documentation xml:lang="en">A formal identifier that is used to identify this citation record when it is represented in other formats, or referenced in a specification, model, design or an instance.</xs:documentation>
           </xs:annotation>
          </xs:element>
          <xs:element name="version" minOccurs="0" maxOccurs="1" type="string">
            <xs:annotation>
              <xs:documentation xml:lang="en">The identifier that is used to identify this version of the citation record when it is referenced in a specification, model, design or instance. This is an arbitrary value managed by the citation record author and is not expected to be globally unique. For example, it might be a timestamp (e.g. yyyymmdd) if a managed version is not available. There is also no expectation that versions can be placed in a lexicographical sequence.</xs:documentation>
           </xs:annotation>
          </xs:element>
          <xs:element name="name" minOccurs="0" maxOccurs="1" type="string">
            <xs:annotation>
              <xs:documentation xml:lang="en">A natural language name identifying the citation record. This name should be usable as an identifier for the module by machine processing applications such as code generation.</xs:documentation>
           </xs:annotation>
          </xs:element>
          <xs:element name="title" minOccurs="0" maxOccurs="1" type="string">
            <xs:annotation>
              <xs:documentation xml:lang="en">A short, descriptive, user-friendly title for the citation record.</xs:documentation>
           </xs:annotation>
          </xs:element>
          <xs:element name="status" minOccurs="1" maxOccurs="1" type="PublicationStatus">
            <xs:annotation>
              <xs:documentation xml:lang="en">The status of this summary. Enables tracking the life-cycle of the content.</xs:documentation>
           </xs:annotation>
          </xs:element>
          <xs:element name="experimental" minOccurs="0" maxOccurs="1" type="boolean">
            <xs:annotation>
              <xs:documentation xml:lang="en">A Boolean value to indicate that this citation record is authored for testing purposes (or education/evaluation/marketing) and is not intended to be used for genuine usage.</xs:documentation>
           </xs:annotation>
          </xs:element>
          <xs:element name="date" minOccurs="0" maxOccurs="1" type="dateTime">
            <xs:annotation>
              <xs:documentation xml:lang="en">The date (and optionally time) when the citation record was last significantly changed. The date must change when the business version changes and it must change if the status code changes. In addition, it should change when the substantive content of the citation record changes.</xs:documentation>
           </xs:annotation>
          </xs:element>
          <xs:element name="publisher" minOccurs="0" maxOccurs="1" type="string">
            <xs:annotation>
              <xs:documentation xml:lang="en">The name of the organization or individual that published the citation record.</xs:documentation>
           </xs:annotation>
          </xs:element>
          <xs:element name="contact" minOccurs="0" maxOccurs="unbounded" type="ContactDetail">
            <xs:annotation>
              <xs:documentation xml:lang="en">Contact details to assist a user in finding and communicating with the publisher.</xs:documentation>
           </xs:annotation>
          </xs:element>
          <xs:element name="description" minOccurs="0" maxOccurs="1" type="markdown">
            <xs:annotation>
              <xs:documentation xml:lang="en">A free text natural language description of the citation from a consumer's perspective.</xs:documentation>
           </xs:annotation>
          </xs:element>
          <xs:element name="useContext" minOccurs="0" maxOccurs="unbounded" type="UsageContext">
            <xs:annotation>
              <xs:documentation xml:lang="en">The content was developed with a focus and intent of supporting the contexts that are listed. These contexts may be general categories (gender, age, ...) or may be references to specific programs (insurance plans, studies, ...) and may be used to assist with indexing and searching for appropriate citation record instances.</xs:documentation>
           </xs:annotation>
          </xs:element>
          <xs:element name="jurisdiction" minOccurs="0" maxOccurs="unbounded" type="CodeableConcept">
            <xs:annotation>
              <xs:documentation xml:lang="en">A legal or geographic region in which the citation record is intended to be used.</xs:documentation>
           </xs:annotation>
          </xs:element>
          <xs:element name="purpose" minOccurs="0" maxOccurs="1" type="markdown">
            <xs:annotation>
              <xs:documentation xml:lang="en">Explanation of why this citation is needed and why it has been designed as it has.</xs:documentation>
           </xs:annotation>
          </xs:element>
          <xs:element name="copyright" minOccurs="0" maxOccurs="1" type="markdown">
            <xs:annotation>
              <xs:documentation xml:lang="en">Use and/or publishing restrictions for the citation record, not for the cited artifact.</xs:documentation>
           </xs:annotation>
          </xs:element>
          <xs:element name="approvalDate" minOccurs="0" maxOccurs="1" type="date">
            <xs:annotation>
              <xs:documentation xml:lang="en">The date on which the resource content was approved by the publisher. Approval happens once when the content is officially approved for usage.</xs:documentation>
           </xs:annotation>
          </xs:element>
          <xs:element name="lastReviewDate" minOccurs="0" maxOccurs="1" type="date">
            <xs:annotation>
              <xs:documentation xml:lang="en">The date on which the resource content was last reviewed. Review happens periodically after approval but does not change the original approval date.</xs:documentation>
           </xs:annotation>
          </xs:element>
          <xs:element name="effectivePeriod" minOccurs="0" maxOccurs="1" type="Period">
            <xs:annotation>
              <xs:documentation xml:lang="en">The period during which the citation record content was or is planned to be in active use.</xs:documentation>
           </xs:annotation>
          </xs:element>
          <xs:element name="author" minOccurs="0" maxOccurs="unbounded" type="ContactDetail">
            <xs:annotation>
              <xs:documentation xml:lang="en">Who authored or created the citation record.</xs:documentation>
           </xs:annotation>
          </xs:element>
          <xs:element name="editor" minOccurs="0" maxOccurs="unbounded" type="ContactDetail">
            <xs:annotation>
              <xs:documentation xml:lang="en">Who edited or revised the citation record.</xs:documentation>
           </xs:annotation>
          </xs:element>
          <xs:element name="reviewer" minOccurs="0" maxOccurs="unbounded" type="ContactDetail">
            <xs:annotation>
              <xs:documentation xml:lang="en">Who reviewed the citation record.</xs:documentation>
           </xs:annotation>
          </xs:element>
          <xs:element name="endorser" minOccurs="0" maxOccurs="unbounded" type="ContactDetail">
            <xs:annotation>
              <xs:documentation xml:lang="en">Who endorsed the citation record.</xs:documentation>
           </xs:annotation>
          </xs:element>
          <xs:element name="summary" type="Citation.Summary" minOccurs="0" maxOccurs="unbounded">
            <xs:annotation>
              <xs:documentation xml:lang="en">A human-readable display of key concepts to represent the citation.</xs:documentation>
           </xs:annotation>
          </xs:element>
          <xs:element name="classification" type="Citation.Classification" minOccurs="0" maxOccurs="unbounded">
            <xs:annotation>
              <xs:documentation xml:lang="en">The assignment to an organizing scheme.</xs:documentation>
           </xs:annotation>
          </xs:element>
          <xs:element name="note" minOccurs="0" maxOccurs="unbounded" type="Annotation">
            <xs:annotation>
              <xs:documentation xml:lang="en">Used for general notes and annotations not coded elsewhere.</xs:documentation>
           </xs:annotation>
          </xs:element>
          <xs:element name="currentState" minOccurs="0" maxOccurs="unbounded" type="CodeableConcept">
            <xs:annotation>
              <xs:documentation xml:lang="en">The status of the citation record.</xs:documentation>
           </xs:annotation>
          </xs:element>
          <xs:element name="statusDate" type="Citation.StatusDate" minOccurs="0" maxOccurs="unbounded">
            <xs:annotation>
              <xs:documentation xml:lang="en">The state or status of the citation record paired with an effective date or period for that state.</xs:documentation>
           </xs:annotation>
          </xs:element>
          <xs:element name="relatedArtifact" minOccurs="0" maxOccurs="unbounded" type="RelatedArtifact">
            <xs:annotation>
              <xs:documentation xml:lang="en">Artifact related to the citation record.</xs:documentation>
           </xs:annotation>
          </xs:element>
          <xs:element name="citedArtifact" type="Citation.CitedArtifact" minOccurs="0" maxOccurs="1">
            <xs:annotation>
              <xs:documentation xml:lang="en">The article or artifact being described.</xs:documentation>
           </xs:annotation>
          </xs:element>
        </xs:sequence>
      </xs:extension>
    </xs:complexContent>
  </xs:complexType>
  <xs:complexType name="Citation.Summary">
    <xs:annotation>
      <xs:documentation xml:lang="en">The Citation Resource enables reference to any knowledge artifact for purposes of identification and attribution. The Citation Resource supports existing reference structures and developing publication practices such as versioning, expressing complex contributorship roles, and referencing computable resources.</xs:documentation>
    </xs:annotation>
    <xs:complexContent>
      <xs:extension base="BackboneElement">
        <xs:sequence>
          <xs:element name="style" minOccurs="0" maxOccurs="1" type="CodeableConcept">
            <xs:annotation>
              <xs:documentation xml:lang="en">Format for display of the citation summary.</xs:documentation>
           </xs:annotation>
          </xs:element>
          <xs:element name="text" minOccurs="1" maxOccurs="1" type="markdown">
            <xs:annotation>
              <xs:documentation xml:lang="en">The human-readable display of the citation summary.</xs:documentation>
           </xs:annotation>
          </xs:element>
        </xs:sequence>
      </xs:extension>
    </xs:complexContent>
  </xs:complexType>
  <xs:complexType name="Citation.Classification">
    <xs:annotation>
      <xs:documentation xml:lang="en">The Citation Resource enables reference to any knowledge artifact for purposes of identification and attribution. The Citation Resource supports existing reference structures and developing publication practices such as versioning, expressing complex contributorship roles, and referencing computable resources.</xs:documentation>
    </xs:annotation>
    <xs:complexContent>
      <xs:extension base="BackboneElement">
        <xs:sequence>
          <xs:element name="type" minOccurs="0" maxOccurs="1" type="CodeableConcept">
            <xs:annotation>
              <xs:documentation xml:lang="en">The kind of classifier (e.g. publication type, keyword).</xs:documentation>
           </xs:annotation>
          </xs:element>
          <xs:element name="classifier" minOccurs="0" maxOccurs="unbounded" type="CodeableConcept">
            <xs:annotation>
              <xs:documentation xml:lang="en">The specific classification value.</xs:documentation>
           </xs:annotation>
          </xs:element>
        </xs:sequence>
      </xs:extension>
    </xs:complexContent>
  </xs:complexType>
  <xs:complexType name="Citation.StatusDate">
    <xs:annotation>
      <xs:documentation xml:lang="en">The Citation Resource enables reference to any knowledge artifact for purposes of identification and attribution. The Citation Resource supports existing reference structures and developing publication practices such as versioning, expressing complex contributorship roles, and referencing computable resources.</xs:documentation>
    </xs:annotation>
    <xs:complexContent>
      <xs:extension base="BackboneElement">
        <xs:sequence>
          <xs:element name="activity" minOccurs="1" maxOccurs="1" type="CodeableConcept">
            <xs:annotation>
              <xs:documentation xml:lang="en">The state or status of the citation record (that will be paired with the period).</xs:documentation>
           </xs:annotation>
          </xs:element>
          <xs:element name="actual" minOccurs="0" maxOccurs="1" type="boolean">
            <xs:annotation>
              <xs:documentation xml:lang="en">Whether the status date is actual (has occurred) or expected (estimated or anticipated).</xs:documentation>
           </xs:annotation>
          </xs:element>
          <xs:element name="period" minOccurs="1" maxOccurs="1" type="Period">
            <xs:annotation>
              <xs:documentation xml:lang="en">When the status started and/or ended.</xs:documentation>
           </xs:annotation>
          </xs:element>
        </xs:sequence>
      </xs:extension>
    </xs:complexContent>
  </xs:complexType>
  <xs:complexType name="Citation.CitedArtifact">
    <xs:annotation>
      <xs:documentation xml:lang="en">The Citation Resource enables reference to any knowledge artifact for purposes of identification and attribution. The Citation Resource supports existing reference structures and developing publication practices such as versioning, expressing complex contributorship roles, and referencing computable resources.</xs:documentation>
    </xs:annotation>
    <xs:complexContent>
      <xs:extension base="BackboneElement">
        <xs:sequence>
          <xs:element name="identifier" minOccurs="0" maxOccurs="unbounded" type="Identifier">
            <xs:annotation>
              <xs:documentation xml:lang="en">A formal identifier that is used to identify the cited artifact when it is represented in other formats, or referenced in a specification, model, design or an instance.</xs:documentation>
           </xs:annotation>
          </xs:element>
          <xs:element name="relatedIdentifier" minOccurs="0" maxOccurs="unbounded" type="Identifier">
            <xs:annotation>
              <xs:documentation xml:lang="en">A formal identifier that is used to identify things closely related to the cited artifact.</xs:documentation>
           </xs:annotation>
          </xs:element>
          <xs:element name="dateAccessed" minOccurs="0" maxOccurs="1" type="dateTime">
            <xs:annotation>
              <xs:documentation xml:lang="en">When the cited artifact was accessed.</xs:documentation>
           </xs:annotation>
          </xs:element>
          <xs:element name="version" type="Citation.Version" minOccurs="0" maxOccurs="1">
            <xs:annotation>
              <xs:documentation xml:lang="en">The defined version of the cited artifact.</xs:documentation>
           </xs:annotation>
          </xs:element>
          <xs:element name="currentState" minOccurs="0" maxOccurs="unbounded" type="CodeableConcept">
            <xs:annotation>
              <xs:documentation xml:lang="en">The status of the cited artifact.</xs:documentation>
           </xs:annotation>
          </xs:element>
          <xs:element name="statusDate" type="Citation.StatusDate1" minOccurs="0" maxOccurs="unbounded">
            <xs:annotation>
              <xs:documentation xml:lang="en">An effective date or period, historical or future, actual or expected, for a status of the cited artifact.</xs:documentation>
           </xs:annotation>
          </xs:element>
          <xs:element name="title" type="Citation.Title" minOccurs="0" maxOccurs="unbounded">
            <xs:annotation>
              <xs:documentation xml:lang="en">The title details of the article or artifact.</xs:documentation>
           </xs:annotation>
          </xs:element>
          <xs:element name="abstract" type="Citation.Abstract" minOccurs="0" maxOccurs="unbounded">
            <xs:annotation>
              <xs:documentation xml:lang="en">The abstract may be used to convey article-contained abstracts, externally-created abstracts, or other descriptive summaries.</xs:documentation>
           </xs:annotation>
          </xs:element>
          <xs:element name="part" type="Citation.Part" minOccurs="0" maxOccurs="1">
            <xs:annotation>
              <xs:documentation xml:lang="en">The component of the article or artifact.</xs:documentation>
           </xs:annotation>
          </xs:element>
          <xs:element name="relatesTo" type="Citation.RelatesTo" minOccurs="0" maxOccurs="unbounded">
            <xs:annotation>
              <xs:documentation xml:lang="en">The artifact related to the cited artifact.</xs:documentation>
           </xs:annotation>
          </xs:element>
          <xs:element name="publicationForm" type="Citation.PublicationForm" minOccurs="0" maxOccurs="unbounded">
            <xs:annotation>
              <xs:documentation xml:lang="en">If multiple, used to represent alternative forms of the article that are not separate citations.</xs:documentation>
           </xs:annotation>
          </xs:element>
          <xs:element name="webLocation" type="Citation.WebLocation" minOccurs="0" maxOccurs="unbounded">
            <xs:annotation>
              <xs:documentation xml:lang="en">Used for any URL for the article or artifact cited.</xs:documentation>
           </xs:annotation>
          </xs:element>
          <xs:element name="classification" type="Citation.Classification1" minOccurs="0" maxOccurs="unbounded">
            <xs:annotation>
              <xs:documentation xml:lang="en">The assignment to an organizing scheme.</xs:documentation>
           </xs:annotation>
          </xs:element>
          <xs:element name="contributorship" type="Citation.Contributorship" minOccurs="0" maxOccurs="1">
            <xs:annotation>
              <xs:documentation xml:lang="en">This element is used to list authors and other contributors, their contact information, specific contributions, and summary statements.</xs:documentation>
           </xs:annotation>
          </xs:element>
          <xs:element name="note" minOccurs="0" maxOccurs="unbounded" type="Annotation">
            <xs:annotation>
              <xs:documentation xml:lang="en">Any additional information or content for the article or artifact.</xs:documentation>
           </xs:annotation>
          </xs:element>
        </xs:sequence>
      </xs:extension>
    </xs:complexContent>
  </xs:complexType>
  <xs:complexType name="Citation.Version">
    <xs:annotation>
      <xs:documentation xml:lang="en">The Citation Resource enables reference to any knowledge artifact for purposes of identification and attribution. The Citation Resource supports existing reference structures and developing publication practices such as versioning, expressing complex contributorship roles, and referencing computable resources.</xs:documentation>
    </xs:annotation>
    <xs:complexContent>
      <xs:extension base="BackboneElement">
        <xs:sequence>
          <xs:element name="value" minOccurs="1" maxOccurs="1" type="string">
            <xs:annotation>
              <xs:documentation xml:lang="en">The version number or other version identifier.</xs:documentation>
           </xs:annotation>
          </xs:element>
          <xs:element name="baseCitation" minOccurs="0" maxOccurs="1" type="Reference">
            <xs:annotation>
              <xs:documentation xml:lang="en">Citation for the main version of the cited artifact.</xs:documentation>
           </xs:annotation>
          </xs:element>
        </xs:sequence>
      </xs:extension>
    </xs:complexContent>
  </xs:complexType>
  <xs:complexType name="Citation.StatusDate1">
    <xs:annotation>
      <xs:documentation xml:lang="en">The Citation Resource enables reference to any knowledge artifact for purposes of identification and attribution. The Citation Resource supports existing reference structures and developing publication practices such as versioning, expressing complex contributorship roles, and referencing computable resources.</xs:documentation>
    </xs:annotation>
    <xs:complexContent>
      <xs:extension base="BackboneElement">
        <xs:sequence>
          <xs:element name="activity" minOccurs="1" maxOccurs="1" type="CodeableConcept">
            <xs:annotation>
              <xs:documentation xml:lang="en">A definition of the status associated with a date or period.</xs:documentation>
           </xs:annotation>
          </xs:element>
          <xs:element name="actual" minOccurs="0" maxOccurs="1" type="boolean">
            <xs:annotation>
              <xs:documentation xml:lang="en">Either occurred or expected.</xs:documentation>
           </xs:annotation>
          </xs:element>
          <xs:element name="period" minOccurs="1" maxOccurs="1" type="Period">
            <xs:annotation>
              <xs:documentation xml:lang="en">When the status started and/or ended.</xs:documentation>
           </xs:annotation>
          </xs:element>
        </xs:sequence>
      </xs:extension>
    </xs:complexContent>
  </xs:complexType>
  <xs:complexType name="Citation.Title">
    <xs:annotation>
      <xs:documentation xml:lang="en">The Citation Resource enables reference to any knowledge artifact for purposes of identification and attribution. The Citation Resource supports existing reference structures and developing publication practices such as versioning, expressing complex contributorship roles, and referencing computable resources.</xs:documentation>
    </xs:annotation>
    <xs:complexContent>
      <xs:extension base="BackboneElement">
        <xs:sequence>
          <xs:element name="type" minOccurs="0" maxOccurs="unbounded" type="CodeableConcept">
            <xs:annotation>
              <xs:documentation xml:lang="en">Used to express the reason for or classification of the title.</xs:documentation>
           </xs:annotation>
          </xs:element>
          <xs:element name="language" minOccurs="0" maxOccurs="1" type="CodeableConcept">
            <xs:annotation>
              <xs:documentation xml:lang="en">Used to express the specific language of the title.</xs:documentation>
           </xs:annotation>
          </xs:element>
          <xs:element name="text" minOccurs="1" maxOccurs="1" type="markdown">
            <xs:annotation>
              <xs:documentation xml:lang="en">The title of the article or artifact.</xs:documentation>
           </xs:annotation>
          </xs:element>
        </xs:sequence>
      </xs:extension>
    </xs:complexContent>
  </xs:complexType>
  <xs:complexType name="Citation.Abstract">
    <xs:annotation>
      <xs:documentation xml:lang="en">The Citation Resource enables reference to any knowledge artifact for purposes of identification and attribution. The Citation Resource supports existing reference structures and developing publication practices such as versioning, expressing complex contributorship roles, and referencing computable resources.</xs:documentation>
    </xs:annotation>
    <xs:complexContent>
      <xs:extension base="BackboneElement">
        <xs:sequence>
          <xs:element name="type" minOccurs="0" maxOccurs="1" type="CodeableConcept">
            <xs:annotation>
              <xs:documentation xml:lang="en">Used to express the reason for or classification of the abstract.</xs:documentation>
           </xs:annotation>
          </xs:element>
          <xs:element name="language" minOccurs="0" maxOccurs="1" type="CodeableConcept">
            <xs:annotation>
              <xs:documentation xml:lang="en">Used to express the specific language of the abstract.</xs:documentation>
           </xs:annotation>
          </xs:element>
          <xs:element name="text" minOccurs="1" maxOccurs="1" type="markdown">
            <xs:annotation>
              <xs:documentation xml:lang="en">Abstract content.</xs:documentation>
           </xs:annotation>
          </xs:element>
          <xs:element name="copyright" minOccurs="0" maxOccurs="1" type="markdown">
            <xs:annotation>
              <xs:documentation xml:lang="en">Copyright notice for the abstract.</xs:documentation>
           </xs:annotation>
          </xs:element>
        </xs:sequence>
      </xs:extension>
    </xs:complexContent>
  </xs:complexType>
  <xs:complexType name="Citation.Part">
    <xs:annotation>
      <xs:documentation xml:lang="en">The Citation Resource enables reference to any knowledge artifact for purposes of identification and attribution. The Citation Resource supports existing reference structures and developing publication practices such as versioning, expressing complex contributorship roles, and referencing computable resources.</xs:documentation>
    </xs:annotation>
    <xs:complexContent>
      <xs:extension base="BackboneElement">
        <xs:sequence>
          <xs:element name="type" minOccurs="0" maxOccurs="1" type="CodeableConcept">
            <xs:annotation>
              <xs:documentation xml:lang="en">The kind of component.</xs:documentation>
           </xs:annotation>
          </xs:element>
          <xs:element name="value" minOccurs="0" maxOccurs="1" type="string">
            <xs:annotation>
              <xs:documentation xml:lang="en">The specification of the component.</xs:documentation>
           </xs:annotation>
          </xs:element>
          <xs:element name="baseCitation" minOccurs="0" maxOccurs="1" type="Reference">
            <xs:annotation>
              <xs:documentation xml:lang="en">The citation for the full article or artifact.</xs:documentation>
           </xs:annotation>
          </xs:element>
        </xs:sequence>
      </xs:extension>
    </xs:complexContent>
  </xs:complexType>
  <xs:complexType name="Citation.RelatesTo">
    <xs:annotation>
      <xs:documentation xml:lang="en">The Citation Resource enables reference to any knowledge artifact for purposes of identification and attribution. The Citation Resource supports existing reference structures and developing publication practices such as versioning, expressing complex contributorship roles, and referencing computable resources.</xs:documentation>
    </xs:annotation>
    <xs:complexContent>
      <xs:extension base="BackboneElement">
        <xs:sequence>
          <xs:element name="type" minOccurs="1" maxOccurs="1" type="RelatedArtifactTypeExpanded">
            <xs:annotation>
              <xs:documentation xml:lang="en">The type of relationship to the related artifact.</xs:documentation>
           </xs:annotation>
          </xs:element>
          <xs:element name="classifier" minOccurs="0" maxOccurs="unbounded" type="CodeableConcept">
            <xs:annotation>
              <xs:documentation xml:lang="en">Provides additional classifiers of the related artifact.</xs:documentation>
           </xs:annotation>
          </xs:element>
          <xs:element name="label" minOccurs="0" maxOccurs="1" type="string">
            <xs:annotation>
              <xs:documentation xml:lang="en">A short label that can be used to reference the related artifact from elsewhere in the containing artifact, such as a footnote index.</xs:documentation>
           </xs:annotation>
          </xs:element>
          <xs:element name="display" minOccurs="0" maxOccurs="1" type="string">
            <xs:annotation>
              <xs:documentation xml:lang="en">A brief description of the document or knowledge resource being referenced, suitable for display to a consumer.</xs:documentation>
           </xs:annotation>
          </xs:element>
          <xs:element name="citation" minOccurs="0" maxOccurs="1" type="markdown">
            <xs:annotation>
              <xs:documentation xml:lang="en">A bibliographic citation for the related artifact. This text SHOULD be formatted according to an accepted citation format.</xs:documentation>
           </xs:annotation>
          </xs:element>
          <xs:element name="document" minOccurs="0" maxOccurs="1" type="Attachment">
            <xs:annotation>
              <xs:documentation xml:lang="en">The document being referenced, represented as an attachment. Do not use this element if using the resource element to provide the canonical to the related artifact.</xs:documentation>
           </xs:annotation>
          </xs:element>
          <xs:element name="resource" minOccurs="0" maxOccurs="1" type="canonical">
            <xs:annotation>
              <xs:documentation xml:lang="en">The related artifact, such as a library, value set, profile, or other knowledge resource.</xs:documentation>
           </xs:annotation>
          </xs:element>
          <xs:element name="resourceReference" minOccurs="0" maxOccurs="1" type="Reference">
            <xs:annotation>
              <xs:documentation xml:lang="en">The related artifact, if the artifact is not a canonical resource, or a resource reference to a canonical resource.</xs:documentation>
           </xs:annotation>
          </xs:element>
        </xs:sequence>
      </xs:extension>
    </xs:complexContent>
  </xs:complexType>
  <xs:complexType name="Citation.PublicationForm">
    <xs:annotation>
      <xs:documentation xml:lang="en">The Citation Resource enables reference to any knowledge artifact for purposes of identification and attribution. The Citation Resource supports existing reference structures and developing publication practices such as versioning, expressing complex contributorship roles, and referencing computable resources.</xs:documentation>
    </xs:annotation>
    <xs:complexContent>
      <xs:extension base="BackboneElement">
        <xs:sequence>
          <xs:element name="publishedIn" type="Citation.PublishedIn" minOccurs="0" maxOccurs="1">
            <xs:annotation>
              <xs:documentation xml:lang="en">The collection the cited article or artifact is published in.</xs:documentation>
           </xs:annotation>
          </xs:element>
          <xs:element name="citedMedium" minOccurs="0" maxOccurs="1" type="CodeableConcept">
            <xs:annotation>
              <xs:documentation xml:lang="en">Describes the form of the medium cited. Common codes are &quot;Internet&quot; or &quot;Print&quot;.</xs:documentation>
           </xs:annotation>
          </xs:element>
          <xs:element name="volume" minOccurs="0" maxOccurs="1" type="string">
            <xs:annotation>
              <xs:documentation xml:lang="en">Volume number of journal in which the article is published.</xs:documentation>
           </xs:annotation>
          </xs:element>
          <xs:element name="issue" minOccurs="0" maxOccurs="1" type="string">
            <xs:annotation>
              <xs:documentation xml:lang="en">Issue, part or supplement of journal in which the article is published.</xs:documentation>
           </xs:annotation>
          </xs:element>
          <xs:element name="publicationDateYear" minOccurs="0" maxOccurs="1" type="string">
            <xs:annotation>
              <xs:documentation xml:lang="en">Year on which the issue of the journal was published.</xs:documentation>
           </xs:annotation>
          </xs:element>
          <xs:element name="publicationDateMonth" minOccurs="0" maxOccurs="1" type="string">
            <xs:annotation>
              <xs:documentation xml:lang="en">Month on which the issue of the journal was published.</xs:documentation>
           </xs:annotation>
          </xs:element>
          <xs:element name="publicationDateDay" minOccurs="0" maxOccurs="1" type="string">
            <xs:annotation>
              <xs:documentation xml:lang="en">Day on which the issue of the journal was published.</xs:documentation>
           </xs:annotation>
          </xs:element>
          <xs:element name="publicationDateSeason" minOccurs="0" maxOccurs="1" type="string">
            <xs:annotation>
              <xs:documentation xml:lang="en">Spring, Summer, Fall/Autumn, Winter.</xs:documentation>
           </xs:annotation>
          </xs:element>
          <xs:element name="publicationDateText" minOccurs="0" maxOccurs="1" type="string">
            <xs:annotation>
              <xs:documentation xml:lang="en">Text representation of the date of which the issue of the journal was published.</xs:documentation>
           </xs:annotation>
          </xs:element>
          <xs:element name="articleDate" minOccurs="0" maxOccurs="1" type="dateTime">
            <xs:annotation>
              <xs:documentation xml:lang="en">The date the article was added to the database, or the date the article was released (which may differ from the journal issue publication date).</xs:documentation>
           </xs:annotation>
          </xs:element>
          <xs:element name="lastRevisionDate" minOccurs="0" maxOccurs="1" type="dateTime">
            <xs:annotation>
              <xs:documentation xml:lang="en">The date the article was last revised or updated in the database.</xs:documentation>
           </xs:annotation>
          </xs:element>
          <xs:element name="language" minOccurs="0" maxOccurs="unbounded" type="CodeableConcept">
            <xs:annotation>
              <xs:documentation xml:lang="en">Language in which this form of the article is published.</xs:documentation>
           </xs:annotation>
          </xs:element>
          <xs:element name="accessionNumber" minOccurs="0" maxOccurs="1" type="string">
            <xs:annotation>
              <xs:documentation xml:lang="en">Entry number or identifier for inclusion in a database.</xs:documentation>
           </xs:annotation>
          </xs:element>
          <xs:element name="pageString" minOccurs="0" maxOccurs="1" type="string">
            <xs:annotation>
              <xs:documentation xml:lang="en">Used for full display of pagination.</xs:documentation>
           </xs:annotation>
          </xs:element>
          <xs:element name="firstPage" minOccurs="0" maxOccurs="1" type="string">
            <xs:annotation>
              <xs:documentation xml:lang="en">Used for isolated representation of first page.</xs:documentation>
           </xs:annotation>
          </xs:element>
          <xs:element name="lastPage" minOccurs="0" maxOccurs="1" type="string">
            <xs:annotation>
              <xs:documentation xml:lang="en">Used for isolated representation of last page.</xs:documentation>
           </xs:annotation>
          </xs:element>
          <xs:element name="pageCount" minOccurs="0" maxOccurs="1" type="string">
            <xs:annotation>
              <xs:documentation xml:lang="en">Actual or approximate number of pages or screens.</xs:documentation>
           </xs:annotation>
          </xs:element>
          <xs:element name="copyright" minOccurs="0" maxOccurs="1" type="markdown">
            <xs:annotation>
              <xs:documentation xml:lang="en">Copyright notice for the full article or artifact.</xs:documentation>
           </xs:annotation>
          </xs:element>
        </xs:sequence>
      </xs:extension>
    </xs:complexContent>
  </xs:complexType>
  <xs:complexType name="Citation.PublishedIn">
    <xs:annotation>
      <xs:documentation xml:lang="en">The Citation Resource enables reference to any knowledge artifact for purposes of identification and attribution. The Citation Resource supports existing reference structures and developing publication practices such as versioning, expressing complex contributorship roles, and referencing computable resources.</xs:documentation>
    </xs:annotation>
    <xs:complexContent>
      <xs:extension base="BackboneElement">
        <xs:sequence>
          <xs:element name="type" minOccurs="0" maxOccurs="1" type="CodeableConcept">
            <xs:annotation>
              <xs:documentation xml:lang="en">Kind of container (e.g. Periodical, database, or book).</xs:documentation>
           </xs:annotation>
          </xs:element>
          <xs:element name="identifier" minOccurs="0" maxOccurs="unbounded" type="Identifier">
            <xs:annotation>
              <xs:documentation xml:lang="en">Journal identifiers include ISSN, ISO Abbreviation and NLMuniqueID; Book identifiers include ISBN.</xs:documentation>
           </xs:annotation>
          </xs:element>
          <xs:element name="title" minOccurs="0" maxOccurs="1" type="string">
            <xs:annotation>
              <xs:documentation xml:lang="en">Name of the database or title of the book or journal.</xs:documentation>
           </xs:annotation>
          </xs:element>
          <xs:element name="publisher" minOccurs="0" maxOccurs="1" type="Reference">
            <xs:annotation>
              <xs:documentation xml:lang="en">Name of the publisher.</xs:documentation>
           </xs:annotation>
          </xs:element>
          <xs:element name="publisherLocation" minOccurs="0" maxOccurs="1" type="string">
            <xs:annotation>
              <xs:documentation xml:lang="en">Geographic location of the publisher.</xs:documentation>
           </xs:annotation>
          </xs:element>
        </xs:sequence>
      </xs:extension>
    </xs:complexContent>
  </xs:complexType>
  <xs:complexType name="Citation.WebLocation">
    <xs:annotation>
      <xs:documentation xml:lang="en">The Citation Resource enables reference to any knowledge artifact for purposes of identification and attribution. The Citation Resource supports existing reference structures and developing publication practices such as versioning, expressing complex contributorship roles, and referencing computable resources.</xs:documentation>
    </xs:annotation>
    <xs:complexContent>
      <xs:extension base="BackboneElement">
        <xs:sequence>
          <xs:element name="classifier" minOccurs="0" maxOccurs="unbounded" type="CodeableConcept">
            <xs:annotation>
              <xs:documentation xml:lang="en">Code the reason for different URLs, e.g. abstract and full-text.</xs:documentation>
           </xs:annotation>
          </xs:element>
          <xs:element name="url" minOccurs="0" maxOccurs="1" type="uri">
            <xs:annotation>
              <xs:documentation xml:lang="en">The specific URL.</xs:documentation>
           </xs:annotation>
          </xs:element>
        </xs:sequence>
      </xs:extension>
    </xs:complexContent>
  </xs:complexType>
  <xs:complexType name="Citation.Classification1">
    <xs:annotation>
      <xs:documentation xml:lang="en">The Citation Resource enables reference to any knowledge artifact for purposes of identification and attribution. The Citation Resource supports existing reference structures and developing publication practices such as versioning, expressing complex contributorship roles, and referencing computable resources.</xs:documentation>
    </xs:annotation>
    <xs:complexContent>
      <xs:extension base="BackboneElement">
        <xs:sequence>
          <xs:element name="type" minOccurs="0" maxOccurs="1" type="CodeableConcept">
            <xs:annotation>
              <xs:documentation xml:lang="en">The kind of classifier (e.g. publication type, keyword).</xs:documentation>
           </xs:annotation>
          </xs:element>
          <xs:element name="classifier" minOccurs="0" maxOccurs="unbounded" type="CodeableConcept">
            <xs:annotation>
              <xs:documentation xml:lang="en">The specific classification value.</xs:documentation>
           </xs:annotation>
          </xs:element>
          <xs:element name="artifactAssessment" minOccurs="0" maxOccurs="unbounded" type="Reference">
            <xs:annotation>
              <xs:documentation xml:lang="en">Complex or externally created classification.</xs:documentation>
           </xs:annotation>
          </xs:element>
        </xs:sequence>
      </xs:extension>
    </xs:complexContent>
  </xs:complexType>
  <xs:complexType name="Citation.Contributorship">
    <xs:annotation>
      <xs:documentation xml:lang="en">The Citation Resource enables reference to any knowledge artifact for purposes of identification and attribution. The Citation Resource supports existing reference structures and developing publication practices such as versioning, expressing complex contributorship roles, and referencing computable resources.</xs:documentation>
    </xs:annotation>
    <xs:complexContent>
      <xs:extension base="BackboneElement">
        <xs:sequence>
          <xs:element name="complete" minOccurs="0" maxOccurs="1" type="boolean">
            <xs:annotation>
              <xs:documentation xml:lang="en">Indicates if the list includes all authors and/or contributors.</xs:documentation>
           </xs:annotation>
          </xs:element>
          <xs:element name="entry" type="Citation.Entry" minOccurs="0" maxOccurs="unbounded">
            <xs:annotation>
              <xs:documentation xml:lang="en">An individual entity named in the author list or contributor list.</xs:documentation>
           </xs:annotation>
          </xs:element>
          <xs:element name="summary" type="Citation.Summary1" minOccurs="0" maxOccurs="unbounded">
            <xs:annotation>
              <xs:documentation xml:lang="en">Used to record a display of the author/contributor list without separate coding for each list member.</xs:documentation>
           </xs:annotation>
          </xs:element>
        </xs:sequence>
      </xs:extension>
    </xs:complexContent>
  </xs:complexType>
  <xs:complexType name="Citation.Entry">
    <xs:annotation>
      <xs:documentation xml:lang="en">The Citation Resource enables reference to any knowledge artifact for purposes of identification and attribution. The Citation Resource supports existing reference structures and developing publication practices such as versioning, expressing complex contributorship roles, and referencing computable resources.</xs:documentation>
    </xs:annotation>
    <xs:complexContent>
      <xs:extension base="BackboneElement">
        <xs:sequence>
          <xs:element name="contributor" minOccurs="1" maxOccurs="1" type="Reference">
            <xs:annotation>
              <xs:documentation xml:lang="en">The identity of the individual entity.</xs:documentation>
           </xs:annotation>
          </xs:element>
          <xs:element name="forenameInitials" minOccurs="0" maxOccurs="1" type="string">
            <xs:annotation>
              <xs:documentation xml:lang="en">Initials for forename.</xs:documentation>
           </xs:annotation>
          </xs:element>
          <xs:element name="affiliation" minOccurs="0" maxOccurs="unbounded" type="Reference">
            <xs:annotation>
              <xs:documentation xml:lang="en">Organization affiliated with the entity.</xs:documentation>
           </xs:annotation>
          </xs:element>
          <xs:element name="contributionType" minOccurs="0" maxOccurs="unbounded" type="CodeableConcept">
            <xs:annotation>
              <xs:documentation xml:lang="en">This element identifies the specific nature of an individual’s contribution with respect to the cited work.</xs:documentation>
           </xs:annotation>
          </xs:element>
          <xs:element name="role" minOccurs="0" maxOccurs="1" type="CodeableConcept">
            <xs:annotation>
              <xs:documentation xml:lang="en">The role of the contributor (e.g. author, editor, reviewer).</xs:documentation>
           </xs:annotation>
          </xs:element>
          <xs:element name="contributionInstance" type="Citation.ContributionInstance" minOccurs="0" maxOccurs="unbounded">
            <xs:annotation>
              <xs:documentation xml:lang="en">Contributions with accounting for time or number.</xs:documentation>
           </xs:annotation>
          </xs:element>
          <xs:element name="correspondingContact" minOccurs="0" maxOccurs="1" type="boolean">
            <xs:annotation>
              <xs:documentation xml:lang="en">Indication of which contributor is the corresponding contributor for the role.</xs:documentation>
           </xs:annotation>
          </xs:element>
          <xs:element name="rankingOrder" minOccurs="0" maxOccurs="1" type="positiveInt">
            <xs:annotation>
              <xs:documentation xml:lang="en">Provides a numerical ranking to represent the degree of contributorship relative to other contributors, such as 1 for first author and 2 for second author.</xs:documentation>
           </xs:annotation>
          </xs:element>
        </xs:sequence>
      </xs:extension>
    </xs:complexContent>
  </xs:complexType>
  <xs:complexType name="Citation.ContributionInstance">
    <xs:annotation>
      <xs:documentation xml:lang="en">The Citation Resource enables reference to any knowledge artifact for purposes of identification and attribution. The Citation Resource supports existing reference structures and developing publication practices such as versioning, expressing complex contributorship roles, and referencing computable resources.</xs:documentation>
    </xs:annotation>
    <xs:complexContent>
      <xs:extension base="BackboneElement">
        <xs:sequence>
          <xs:element name="type" minOccurs="1" maxOccurs="1" type="CodeableConcept">
            <xs:annotation>
              <xs:documentation xml:lang="en">The specific contribution.</xs:documentation>
           </xs:annotation>
          </xs:element>
          <xs:element name="time" minOccurs="0" maxOccurs="1" type="dateTime">
            <xs:annotation>
              <xs:documentation xml:lang="en">The time that the contribution was made.</xs:documentation>
           </xs:annotation>
          </xs:element>
        </xs:sequence>
      </xs:extension>
    </xs:complexContent>
  </xs:complexType>
  <xs:complexType name="Citation.Summary1">
    <xs:annotation>
      <xs:documentation xml:lang="en">The Citation Resource enables reference to any knowledge artifact for purposes of identification and attribution. The Citation Resource supports existing reference structures and developing publication practices such as versioning, expressing complex contributorship roles, and referencing computable resources.</xs:documentation>
    </xs:annotation>
    <xs:complexContent>
      <xs:extension base="BackboneElement">
        <xs:sequence>
          <xs:element name="type" minOccurs="0" maxOccurs="1" type="CodeableConcept">
            <xs:annotation>
              <xs:documentation xml:lang="en">Used most commonly to express an author list or a contributorship statement.</xs:documentation>
           </xs:annotation>
          </xs:element>
          <xs:element name="style" minOccurs="0" maxOccurs="1" type="CodeableConcept">
            <xs:annotation>
              <xs:documentation xml:lang="en">The format for the display string.</xs:documentation>
           </xs:annotation>
          </xs:element>
          <xs:element name="source" minOccurs="0" maxOccurs="1" type="CodeableConcept">
            <xs:annotation>
              <xs:documentation xml:lang="en">Used to code the producer or rule for creating the display string.</xs:documentation>
           </xs:annotation>
          </xs:element>
          <xs:element name="value" minOccurs="1" maxOccurs="1" type="markdown">
            <xs:annotation>
              <xs:documentation xml:lang="en">The display string for the author list, contributor list, or contributorship statement.</xs:documentation>
           </xs:annotation>
          </xs:element>
        </xs:sequence>
      </xs:extension>
    </xs:complexContent>
  </xs:complexType>
  <xs:simpleType name="RelatedArtifactTypeExpandedEnum">
    <xs:restriction base="code-primitive">
      <xs:enumeration value="documentation">
        <xs:annotation>
          <xs:documentation xml:lang="en">Documentation</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="justification">
        <xs:annotation>
          <xs:documentation xml:lang="en">Justification</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="citation">
        <xs:annotation>
          <xs:documentation xml:lang="en">Citation</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="predecessor">
        <xs:annotation>
          <xs:documentation xml:lang="en">Predecessor</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="successor">
        <xs:annotation>
          <xs:documentation xml:lang="en">Successor</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="derived-from">
        <xs:annotation>
          <xs:documentation xml:lang="en">Derived From</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="depends-on">
        <xs:annotation>
          <xs:documentation xml:lang="en">Depends On</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="composed-of">
        <xs:annotation>
          <xs:documentation xml:lang="en">Composed Of</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="part-of">
        <xs:annotation>
          <xs:documentation xml:lang="en">Part Of</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="amends">
        <xs:annotation>
          <xs:documentation xml:lang="en">Amends</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="amended-with">
        <xs:annotation>
          <xs:documentation xml:lang="en">Amended With</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="appends">
        <xs:annotation>
          <xs:documentation xml:lang="en">Appends</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="appended-with">
        <xs:annotation>
          <xs:documentation xml:lang="en">Appended With</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="cites">
        <xs:annotation>
          <xs:documentation xml:lang="en">Cites</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="cited-by">
        <xs:annotation>
          <xs:documentation xml:lang="en">Cited By</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="comments-on">
        <xs:annotation>
          <xs:documentation xml:lang="en">Is Comment On</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="comment-in">
        <xs:annotation>
          <xs:documentation xml:lang="en">Has Comment In</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="contains">
        <xs:annotation>
          <xs:documentation xml:lang="en">Contains</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="contained-in">
        <xs:annotation>
          <xs:documentation xml:lang="en">Contained In</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="corrects">
        <xs:annotation>
          <xs:documentation xml:lang="en">Corrects</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="correction-in">
        <xs:annotation>
          <xs:documentation xml:lang="en">Correction In</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="replaces">
        <xs:annotation>
          <xs:documentation xml:lang="en">Replaces</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="replaced-with">
        <xs:annotation>
          <xs:documentation xml:lang="en">Replaced With</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="retracts">
        <xs:annotation>
          <xs:documentation xml:lang="en">Retracts</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="retracted-by">
        <xs:annotation>
          <xs:documentation xml:lang="en">Retracted By</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="signs">
        <xs:annotation>
          <xs:documentation xml:lang="en">Signs</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="similar-to">
        <xs:annotation>
          <xs:documentation xml:lang="en">Similar To</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="supports">
        <xs:annotation>
          <xs:documentation xml:lang="en">Supports</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="supported-with">
        <xs:annotation>
          <xs:documentation xml:lang="en">Supported With</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="transforms">
        <xs:annotation>
          <xs:documentation xml:lang="en">Transforms</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="transformed-into">
        <xs:annotation>
          <xs:documentation xml:lang="en">Transformed Into</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="transformed-with">
        <xs:annotation>
          <xs:documentation xml:lang="en">Transformed With</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="documents">
        <xs:annotation>
          <xs:documentation xml:lang="en">Documents</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="specification-of">
        <xs:annotation>
          <xs:documentation xml:lang="en">Specification Of</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="created-with">
        <xs:annotation>
          <xs:documentation xml:lang="en">Created With</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="cite-as">
        <xs:annotation>
          <xs:documentation xml:lang="en">Cite As</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="reprint">
        <xs:annotation>
          <xs:documentation xml:lang="en">Reprint</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
      <xs:enumeration value="reprint-of">
        <xs:annotation>
          <xs:documentation xml:lang="en">Reprint Of</xs:documentation>
        </xs:annotation>
      </xs:enumeration>
    </xs:restriction>
  </xs:simpleType>
  <xs:complexType name="RelatedArtifactTypeExpanded">
    <xs:annotation>
      <xs:documentation xml:lang="en"></xs:documentation>
      <xs:documentation xml:lang="en">If the element is present, it must have either a @value, an @id, or extensions</xs:documentation>
    </xs:annotation>
    <xs:complexContent>
      <xs:extension base="Element">
        <xs:attribute name="value" type="RelatedArtifactTypeExpandedEnum" use="optional"/>
      </xs:extension>
    </xs:complexContent>
  </xs:complexType>
</xs:schema>
