Instance of: http://www.w3.org/2004/02/skos/core#Concept
Subject Field Subject Field/2841004
Is Reference of Auffrischimpfung-de#Sense
Booster-Injektion-de#Sense
Auffrischungsimpfung-de#Sense
Booster-injection-en#Sense
Injection de rappel-fr#Sense
Richiamo-it#Sense