[1] Univ Vita Salute San Raffaele, IRCCS San Raffaele Sci Inst, Dept Gastroenterol & Endoscopy, I-20132 Milan, Italy
[2] Nancy Univ Hosp, Dept Gastroenterol, F-54500 Vandoeuvre Les Nancy, France
[3] Univ Lorraine, NSERM, NGERE, F-54000 Nancy, France
[4] Nancy Univ Hosp, INFINY Inst, F-54500 Vandoeuvre Les Nancy, France
[5] Nancy Univ Hosp, FHU CURE, F-54500 Vandoeuvre Les Nancy, France
[6] Grp Hosp Prive Ambroise Pare Hartmann, Paris IBD Ctr, F-92200 Neuilly Sur Seine, France
[7] McGill Univ, Hlth Ctr, Div Gastroenterol & Hepatol, Montreal, PQ H4A 3J1, Canada