description: null package_name: ca.on.olis.r4 derivation: constraint name: ObservationValueQuantity type: Quantity elements: value: {mustSupport: true, index: 0} comparator: {mustSupport: true, index: 1} unit: {mustSupport: true, index: 2} package_version: 2.0.1 class: complex-type kind: complex-type url: http://ehealthontario.ca/fhir/StructureDefinition/ObservationValueQuantity base: http://hl7.org/fhir/StructureDefinition/Quantity version: 2.0.1 required: [value]