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  <meta>
    <lastUpdated value="2018-03-05T14:42:15.207-05:00" />
  </meta>
  <url value="StructureDefinition/MyDocumentReference" />
  <name value="MyDocumentReference" />
  <status value="draft" />
  <date value="2017-09-11T13:51:40.908-04:00" />
  <fhirVersion value="3.0.1" />
  <kind value="resource" />
  <abstract value="false" />
  <type value="DocumentReference" />
  <baseDefinition value="http://hl7.org/fhir/StructureDefinition/DocumentReference" />
  <derivation value="constraint" />
  <differential>
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      <min value="1" />
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      <max value="0" />
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      <max value="0" />
      <type>
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        <targetProfile value="StructureDefinition/MyPractitioner" />
      </type>
      <type>
        <code value="Reference" />
        <targetProfile value="StructureDefinition/MyPatient" />
      </type>
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      <max value="0" />
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    <element id="DocumentReference.authenticator">
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      <path value="DocumentReference.context" />
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  </differential>
</StructureDefinition>