Multiple Resources: * MedicationRequest: Searches MedicationRequests resources based on the period of use, provided in the value of the 'http://nictiz.nl/fhir/StructureDefinition/zib-Medication-PeriodOfUse' extension. * MedicationDispense: Searches MedicationDispense resources based on the period of use, provided in the value of the 'http://nictiz.nl/fhir/StructureDefinition/zib-Medication-PeriodOfUse' extension.