<StructureDefinition xmlns="http://hl7.org/fhir">
  <url value="https://example.org/fhir/StructureDefinition/MyRatio" />
  <name value="MyRatio" />
  <status value="draft" />
  <fhirVersion value="4.0.1" />
  <mapping>
    <identity value="v2" />
    <uri value="http://hl7.org/v2" />
    <name value="HL7 v2 Mapping" />
  </mapping>
  <mapping>
    <identity value="rim" />
    <uri value="http://hl7.org/v3" />
    <name value="RIM Mapping" />
  </mapping>
  <kind value="complex-type" />
  <abstract value="false" />
  <type value="Ratio" />
  <baseDefinition value="http://hl7.org/fhir/StructureDefinition/Ratio" />
  <derivation value="constraint" />
  <differential>
    <element id="Ratio.numerator">
      <path value="Ratio.numerator" />
      <type>
        <code value="Quantity" />
        <profile value="https://example.org/fhir/StructureDefinition/MyQuantity" />
      </type>
    </element>
    <element id="Ratio.denominator">
      <path value="Ratio.denominator" />
      <type>
        <code value="Quantity" />
        <profile value="https://example.org/fhir/StructureDefinition/MyQuantity" />
      </type>
    </element>
  </differential>
</StructureDefinition>