{description: The duration of the medication usage, package_name: nictiz.fhir.nl.stu3.zib2017, derivation: constraint, name: Zib MedicationUse Duration, type: Extension, package_version: 1.3.18, class: extension, kind: primitive-type, url: 'http://nictiz.nl/fhir/StructureDefinition/zib-MedicationUse-Duration', base: 'http://hl7.org/fhir/StructureDefinition/Extension', version: 2.0.2}