[1] CHU Lille, Hop Huriez, Serv Malad Appareil Digestif & Nutr, F-59037 Lille, France
[2] CHU Hotel Dieu, Inst Malad Appareil Digestif, Nantes, France
[3] Hop Louis Mourier, AP HP, Serv Hepatogastroenterol, F-92700 Colombes, France
[4] Univ Paris 07, Paris, France
[5] Ghent Univ Hosp, Serv Hepatogastroenterol, Ghent, Belgium
[6] Hop Cantonal Univ Geneva, Serv Hepatogastroenterol, Geneva, Switzerland
[7] Hop St Antoine, AP HP, Serv Gastroenterol & Nutr, F-75571 Paris, France
[8] Hop Lariboisiere, AP HP, Dept Medicochirurg Pathol Digest, F-75475 Paris, France
[9] Hop St Louis, AP HP, Serv Gastroenterol, Paris, France
[10] Hop St Louis, Grp Etud Therapeut Affect Inflammatoires Tube Dig, Paris, France