description: null package_name: ca.on.oh-olis derivation: constraint name: TestRequestPlacer type: Extension elements: url: pattern: {type: Uri, value: 'http://ehealthontario.ca/fhir/StructureDefinition/ca-on-lab-ext-test-request-placer'} index: 0 value: choices: [valueReference] index: 2 valueReference: type: Reference choiceOf: value refers: ['http://ehealthontario.ca/fhir/StructureDefinition/ca-on-lab-profile-Organization'] index: 3 value[x]: elements: reference: {index: 4} required: [reference] package_version: 2.0.0-0.0.1 class: extension kind: complex-type url: http://ehealthontario.ca/fhir/StructureDefinition/ca-on-lab-ext-test-request-placer base: http://hl7.org/fhir/StructureDefinition/Extension version: null