[1] Ctr Hosp Reg & Univ Lille, Hop Huriez, Registre EPIMAD, Serv Malad Appareil Digestif, F-59037 Lille, France
[2] Hop Calmette, Lille, France
[3] Hop Nord Amiens, Serv Malad Appareil Digestif, Amiens, France
[4] Hop Charles Nicolle, Serv Malad Appareil Digestif, Rouen, France
[5] Hop Gen, Serv Malad Appareil Digestif, Calais, France
[6] Hop Charles Nicolle, Serv Pediat, Rouen, France
[7] Hop Jean Flandre, Lille, France