f:VisionPrescription status: minimum cardinality of 'status' is 1 patient: minimum cardinality of 'patient' is 1 dateWritten: minimum cardinality of 'dateWritten' is 1 prescriber: minimum cardinality of 'prescriber' is 1 VisionPrescription If the resource is contained in another resource, it SHALL NOT contain nested Resources (inherited) If the resource is contained in another resource, it SHALL NOT contain any narrative (inherited) If a resource is contained in another resource, it SHALL NOT have a meta.versionId or a meta.lastUpdated (inherited) If the resource is contained in another resource, it SHALL be referred to from elsewhere in the resource (inherited) VisionPrescription.extension All FHIR elements must have a @value or children (inherited) Must have either extensions or value[x], not both (inherited) VisionPrescription.dispense All FHIR elements must have a @value or children (inherited)