Instance of: http://www.w3.org/2004/02/skos/core#Concept
Subject Field Subject Field/2841006
Is Reference of Placebokontrollierte Studie-de#Sense
Essai clinique contrôlé versus placebo-fr#Sense
Studio controllato verso placebo-it#Sense
Placebo controlled study-en#Sense
Estudio de control placebo-es#Sense