<StructureDefinition xmlns="http://hl7.org/fhir">
  <id value="nfdi4health-ex-mds-study-sampling" />
  <url value="https://www.nfdi4health.de/fhir/metadataschema/StructureDefinition/nfdi4health-ex-mds-sampling" />
  <name value="NFDI4Health_EX_MDS_Study_Sampling" />
  <title value="NFDI4Health EX MDS Study Sampling" />
  <status value="draft" />
  <publisher value="NFDI4Health" />
  <contact>
    <telecom>
      <system value="url" />
      <value value="https://www.nfdi4health.de" />
    </telecom>
  </contact>
  <description value="Group of items providing information about the sampling methohd" />
  <fhirVersion value="4.0.1" />
  <mapping>
    <identity value="rim" />
    <uri value="http://hl7.org/v3" />
    <name value="RIM Mapping" />
  </mapping>
  <mapping>
    <identity value="NFDI4Health" />
    <name value="NFDI4Health to FHIR Mapping" />
  </mapping>
  <kind value="complex-type" />
  <abstract value="false" />
  <context>
    <type value="element" />
    <expression value="ResearchStudy" />
  </context>
  <type value="Extension" />
  <baseDefinition value="http://hl7.org/fhir/StructureDefinition/Extension" />
  <derivation value="constraint" />
  <differential>
    <element id="Extension">
      <path value="Extension" />
      <short value="Sampling method" />
      <definition value="Group of items providing information about the applied sampling method." />
      <max value="1" />
      <mapping>
        <identity value="NFDI4Health" />
        <map value="Design.sampling" />
      </mapping>
    </element>
    <element id="Extension.extension">
      <path value="Extension.extension" />
      <min value="1" />
    </element>
    <element id="Extension.extension:method">
      <path value="Extension.extension" />
      <sliceName value="method" />
      <short value="Applied sampling method" />
      <definition value="Type of the sampling method applied for the selection of participants." />
      <min value="1" />
      <max value="1" />
      <mapping>
        <identity value="NFDI4Health" />
        <map value="Design.sampling.Method" />
      </mapping>
    </element>
    <element id="Extension.extension:method.extension">
      <path value="Extension.extension.extension" />
      <max value="0" />
    </element>
    <element id="Extension.extension:method.url">
      <path value="Extension.extension.url" />
      <fixedUri value="method" />
    </element>
    <element id="Extension.extension:method.value[x]">
      <path value="Extension.extension.value[x]" />
      <type>
        <code value="Coding" />
      </type>
      <binding>
        <strength value="required" />
        <description value="Value set defining codes to specify types of sampling methods." />
        <valueSet value="https://www.nfdi4health.de/fhir/metadataschema/ValueSet/nfdi4health-vs-mds-study-sampling-method-nci-local" />
      </binding>
    </element>
    <element id="Extension.extension:probabilityMethod">
      <path value="Extension.extension" />
      <sliceName value="probabilityMethod" />
      <short value="Specific type of probability sampling" />
      <definition value="Specific type of the probability sampling method applied for the selection of participants." />
      <comment value="0..1, if Design.sampling.method == 'Probability'; otherwise 0..0" />
      <min value="0" />
      <max value="1" />
      <mapping>
        <identity value="NFDI4Health" />
        <map value="Design.sampling.probabilityMethod" />
      </mapping>
    </element>
    <element id="Extension.extension:probabilityMethod.extension">
      <path value="Extension.extension.extension" />
      <max value="0" />
    </element>
    <element id="Extension.extension:probabilityMethod.url">
      <path value="Extension.extension.url" />
      <fixedUri value="probabilityMethod" />
    </element>
    <element id="Extension.extension:probabilityMethod.value[x]">
      <path value="Extension.extension.value[x]" />
      <type>
        <code value="Coding" />
      </type>
      <binding>
        <strength value="required" />
        <description value="Value set defining codes to specify types of probability sampling methods." />
        <valueSet value="https://www.nfdi4health.de/fhir/metadataschema/ValueSet/nfdi4health-vs-mds-study-sampling-prob-method-nci-local" />
      </binding>
    </element>
    <element id="Extension.extension:nonProbabilityMethod">
      <path value="Extension.extension" />
      <sliceName value="nonProbabilityMethod" />
      <short value="Specific type of non-probability sampling" />
      <definition value="Specific type of the non-probability sampling method applied for the selection of participants." />
      <comment value="0..1, if Design.sampling.method == 'Non-probability'; otherwise 0..0" />
      <min value="0" />
      <max value="1" />
      <mapping>
        <identity value="NFDI4Health" />
        <map value="Design.sampling.nonProbabilityMethod" />
      </mapping>
    </element>
    <element id="Extension.extension:nonProbabilityMethod.extension">
      <path value="Extension.extension.extension" />
      <max value="0" />
    </element>
    <element id="Extension.extension:nonProbabilityMethod.url">
      <path value="Extension.extension.url" />
      <fixedUri value="nonProbabilityMethod" />
    </element>
    <element id="Extension.extension:nonProbabilityMethod.value[x]">
      <path value="Extension.extension.value[x]" />
      <type>
        <code value="Coding" />
      </type>
      <binding>
        <strength value="required" />
        <description value="Value set defining codes to specify types of non-probability sampling methods." />
        <valueSet value="https://www.nfdi4health.de/fhir/metadataschema/ValueSet/nfdi4health-vs-mds-study-sampling-method-non-prob-nci-local" />
      </binding>
    </element>
    <element id="Extension.url">
      <path value="Extension.url" />
      <fixedUri value="https://www.nfdi4health.de/fhir/metadataschema/StructureDefinition/nfdi4health-ex-mds-sampling" />
    </element>
    <element id="Extension.value[x]">
      <path value="Extension.value[x]" />
      <max value="0" />
    </element>
  </differential>
</StructureDefinition>