<?xml version="1.0" encoding="UTF-8"?><SearchParameter xmlns="http://hl7.org/fhir"><id value="patient-extensions-Patient-birthOrderBoolean"/><url value="http://hl7.org/fhir/SearchParameter/patient-extensions-Patient-birthOrderBoolean"/><name value="birthOrderBoolean"/><status value="draft"/><experimental value="true"/><description value="Search based on whether a patient was part of a multiple birth or not."/><code value="birthOrderBoolean"/><base value="Patient"/><type value="token"/><xpath value="f:Patient/f:multipleBirthBoolean | f:Patient/f:multipleBirthInteger"/><xpathUsage value="normal"/><multipleOr value="true"/><multipleAnd value="true"/></SearchParameter>