<StructureDefinition xmlns="http://hl7.org/fhir">
  <id value="dca8f755-362c-447c-85f2-b5a18e608260" />
  <meta>
    <lastUpdated value="2018-08-23T11:26:52.819+00:00" />
  </meta>
  <url value="http://example.org/fhir/StructureDefinition/MyResearchSubject" />
  <name value="MyResearchSubject" />
  <status value="draft" />
  <date value="2018-08-23T11:26:52.725+00:00" />
  <fhirVersion value="3.0.1" />
  <kind value="resource" />
  <abstract value="false" />
  <type value="ResearchSubject" />
  <baseDefinition value="http://hl7.org/fhir/StructureDefinition/ResearchSubject" />
  <derivation value="constraint" />
  <differential>
    <element id="ResearchSubject.extension">
      <path value="ResearchSubject.extension" />
      <slicing>
        <discriminator>
          <type value="value" />
          <path value="url" />
        </discriminator>
        <rules value="open" />
      </slicing>
    </element>
    <element id="ResearchSubject.extension:carePlan">
      <path value="ResearchSubject.extension" />
      <sliceName value="carePlan" />
      <short value="Optional Extensions Element" />
      <definition value="Optional Extension Element - found in all resources." />
      <min value="0" />
      <max value="1" />
      <type>
        <code value="Extension" />
        <profile value="http://example.org/fhir/StructureDefinition/MyExtension2" />
      </type>
    </element>
  </differential>
</StructureDefinition>