<StructureDefinition xmlns="http://hl7.org/fhir">
  <meta>
    <lastUpdated value="2017-12-20T14:08:34.97+01:00" />
  </meta>
  <url value="http://clinicalsite.org/fhir/StructureDefinition/researchsubject-comment" />
  <name value="comment" />
  <status value="draft" />
  <date value="2017-12-14T09:21:05.717+01:00" />
  <fhirVersion value="3.0.1" />
  <kind value="complex-type" />
  <abstract value="false" />
  <contextType value="resource" />
  <context value="ResearchSubject" />
  <type value="Extension" />
  <baseDefinition value="http://hl7.org/fhir/StructureDefinition/Extension" />
  <derivation value="constraint" />
  <differential>
    <element id="Extension.url">
      <path value="Extension.url" />
      <fixedUri value="http://clinicalsite.org/fhir/StructureDefinition/researchsubject-comment" />
    </element>
    <element id="Extension.value[x]:valueAnnotation">
      <path value="Extension.valueAnnotation" />
      <sliceName value="valueAnnotation" />
      <type>
        <code value="Annotation" />
      </type>
    </element>
  </differential>
</StructureDefinition>