OBJECTIVE	This study compared injection time and intuitiveness of a prefilled test injection device ( Norditropin FlexPro , Novo Nordisk A/S , Bagsvrd , Denmark ) with those of 2 commercially available durable injection devices ( easypod , Merck Serono SA , Geneva , Switzerland ; and Genotropin , Pfizer Inc , New York , New York ) in GH-treated pediatric patients .\