f:Medication id: minimum cardinality of 'id' is 1 f:Medication/f:meta id: maximum cardinality of 'id' is 1 extension with URL = 'http://www.cdc.gov/nhsn/fhirportal/dqm/ig/StructureDefinition/link-received-date-extension': maximum cardinality of 'extension' is 1 versionId: maximum cardinality of 'versionId' is 1 lastUpdated: maximum cardinality of 'lastUpdated' is 1 source: maximum cardinality of 'source' is 1