Instance of: http://www.w3.org/2004/02/skos/core#Concept
Subject Field unknown
Is Reference of Dubbelblind gerandomiseerd onderzoek-nl#Sense
Randomised double-blind trial-en#Sense
Étude randomisée en double-aveugle-fr#Sense
Randomised placebo-controlled trial-en#Sense
Étude d'intervention-fr#Sense