subjectReference property
subjectReference A code, group definition, or canonical reference that describes the intended subject of the action and its children, if any. Canonical references are allowed to support the definition of protocols for drug and substance quality specifications, and is allowed to reference a MedicinalProductDefinition, SubstanceDefinition, AdministrableProductDefinition, ManufacturedItemDefinition, or PackagedProductDefinition resource.
Implementation
Reference? get subjectReference => throw _privateConstructorUsedError;