{description: The duration of the medication usage, package_name: PGO.02, derivation: constraint, name: Zib MedicationUse Duration, type: Extension, package_version: 1.02.1, class: extension, kind: primitive-type, url: 'http://nictiz.nl/fhir/StructureDefinition/zib-MedicationUse-Duration', base: 'http://hl7.org/fhir/StructureDefinition/Extension', version: '2.0'}