<status value="draft" /> <date value="2020-03-10T10:14:16.2829752Z" /> <publisher value="Azadeh Nassirian" /> <description value="An acronym used to identify the clinical study." /> <purpose value="An acronym used to identify the clinical study." /> <fhirVersion value="4.0.0" /> <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.url"> <path value="Extension.url" /> <fixedUri value="https://fhir.miracum.org/uc1/StructureDefinition/studyAcronym" /> </element> <element id="Extension.value[x]"> <path value="Extension.value[x]" /> <type> <code value="string" /> </type> </element> </differential> </StructureDefinition>