Designing clinical trials in paediatric inflammatory bowel diseases: a PIBDnet commentary.

Turner D, Griffiths AM, Wilson D, Mould DR, Baldassano RN, Russell RK, Dubinsky M, Heyman MB, de Ridder L, Hyams J, Martin de Carpi J, Conklin L, Faubion WA, Koletzko S, Bousvaros A, Ruemmele FM