f:VisionPrescription extension with URL = 'https://fhir.cognovis.de/praxis/StructureDefinition/vision-supporting-information': minimum cardinality of 'extension' is 1 extension with URL = 'https://fhir.cognovis.de/praxis/StructureDefinition/vision-coverage': minimum cardinality of 'extension' is 1 identifier: minimum cardinality of 'identifier' is 1 f:VisionPrescription/f:extension id: maximum cardinality of 'id' is 1 url: minimum cardinality of 'url' is 1 url: maximum cardinality of 'url' is 1 value[x]: minimum cardinality of 'value[x]' is 1 value[x]: maximum cardinality of 'value[x]' is 1