<status value="draft"/> <fhirVersion value="4.0.1"/> <kind value="resource"/> <abstract value="false"/> <type value="Patient"/> <baseDefinition value="http://hl7.org/fhir/StructureDefinition/Patient"/> <derivation value="constraint"/> <differential> <!-- Example: constrain identifier system --> <element id="Patient.identifier.system"> <path value="Patient.identifier.system"/> <fixedUri value="https://fhir.dghs.gov.bd/core/identifier"/> </element> </differential> </StructureDefinition>