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  <meta>
    <lastUpdated value="2021-03-24T20:47:02.409+00:00" />
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  <name value="Preferred" />
  <status value="draft" />
  <date value="2012-06-24" />
  <publisher value="Health Level Seven International (Modeling and Methodology)" />
  <contact>
    <telecom>
      <system value="url" />
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    </telecom>
  </contact>
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  <fhirVersion value="4.0.0" />
  <mapping>
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    <uri value="http://hl7.org/v3" />
    <name value="RIM Mapping" />
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  <abstract value="false" />
  <context>
    <type value="element" />
    <expression value="Resource" />
  </context>
  <type value="Extension" />
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  <derivation value="constraint" />
  <differential>
    <element id="Extension">
      <path value="Extension" />
      <short value="Preferred" />
      <definition value="Flag denoting whether parent item is preferred - e.g., a preferred address or telephone number." />
      <max value="1" />
    </element>
    <element id="Extension.url">
      <path value="Extension.url" />
      <type>
        <code value="uri" />
      </type>
      <fixedUri value="http://hl7.org/fhir/StructureDefinition/iso21090-preferred" />
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    <element id="Extension.value[x]">
      <path value="Extension.value[x]" />
      <slicing>
        <discriminator>
          <type value="type" />
          <path value="$this" />
        </discriminator>
      </slicing>
    </element>
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      <path value="Extension.value[x]" />
      <sliceName value="valueBoolean" />
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        <code value="boolean" />
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  </differential>
</StructureDefinition>