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This content is an example of the US Realm Date and Time - Interval Logical Model and is not a FHIR Resource
<!-- effectiveTime element with IVL<TS> data type precise to the second for an observation -->
<effectiveTime xmlns="urn:hl7-org:v3">
<low value='20110706122735-0800'/>
<high value='20110706122815-0800'/>
</effectiveTime>