[1] Iscare, IBD Clin & Res Ctr, Prague, Czech Republic
[2] Lille Univ & Hosp, Publ Hlth Epidemiol & Econ Hlth, Registre Epimad, Maison Reg Rech Clin, Lille, France
[3] Lille 2 Univ, CHRU Lille, LIRIC, INSERM,UMR 995, Lille, France
[4] Rouen Univ Hosp, Hop Charles Nicolle, Epimad Registry, Gastroenterol Unit, Rouen, France
[5] Lille Univ Hosp, Hop Huriez, Gastroenterol Unit, Lille, France
[6] Rennes Univ Hosp, Gastroenterol Unit, Rennes, France
[7] Univ Lille, Div Gastroenterol Hepatol & Nutr, Dept Paediat, Lille Univ Jeanne de Flandre Childrens Hosp, Lille, France
[8] Lille Univ Hosp, Hop Huriez, Dermatol Unit, Lille, France
[9] Nancy Univ & Hosp, INSERM, U954, Gastroenterol Unit, Nancy, France
[10] Amiens Univ Hosp, CHU Amiens Sud, Epimad Registry, Gastroenterol Unit, Amiens, France