description: null package_name: ca.on.oh derivation: constraint name: ReferralForm type: Extension elements: url: pattern: {type: Uri, value: 'http://ehealthontario.ca/fhir/StructureDefinition/ext-referral-form'} index: 0 value: choices: [valueReference] index: 2 valueReference: type: Reference choiceOf: value refers: ['http://ehealthontario.ca/fhir/StructureDefinition/ca-on-eReferral-profile-Questionnaire'] index: 3 package_version: ereferral-econsult-0.12.0-projectathon1.0.1 class: extension kind: complex-type url: http://ehealthontario.ca/fhir/StructureDefinition/ext-referral-form base: http://hl7.org/fhir/StructureDefinition/Extension version: null