fix: supprimer [x] dans l'alias de l'extension cross-version MedicationAdministration.occurence

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

Author: nriss

input/fsh/RessourcesFHIRCorps/aliases.fsh

@@ -31,5 +31,5 @@ Alias: $jdv-immunization-route-code-cisis = https://smt.esante.gouv.fr/fhir/Valu
 // Extensions pour les éléments R5
 Alias: $immunization-administredProduct-r5 = http://hl7.org/fhir/5.0/StructureDefinition/extension-Immunization.administeredProduct
 Alias: $medicationRequest-dispenseRequest-dispenserInstruction-r5 = http://hl7.org/fhir/5.0/StructureDefinition/extension-MedicationRequest.dispenseRequest.dispenserInstruction
-Alias: $medicationAdministration-occurence-r5 = http://hl7.org/fhir/5.0/StructureDefinition/extension-MedicationAdministration.occurence[x]
+Alias: $medicationAdministration-occurence-r5 = http://hl7.org/fhir/5.0/StructureDefinition/extension-MedicationAdministration.occurence
 Alias: $immunization-basedOn-r5 = http://hl7.org/fhir/5.0/StructureDefinition/extension-Immunization.basedOn