Instance of: http://www.w3.org/2004/02/skos/core#Concept
Subject Field Subject Field/2431
Is Reference of Helbredsattest-da#Sense
Certificado de vigencia-es#Sense
Duration certificate-en#Sense
Laufzeitzertifikat-de#Sense
Certificado de duração-pt#Sense
Certificat médical émis pendant la durée du contrat-fr#Sense