[1] CHU Bordeaux, Gastroenterol, Hop Haut Leveque, Pessac, France
[2] CHU Nantes, Dept Gastroenterol, F-44035 Nantes 01, France
[3] CHU Lille, Dept Gastroenterol, F-59037 Lille, France
[4] Hop St Louis, Gastroenterol, Paris, France
[5] Hop Beaujon, Gastroenterol, Clichy, France
[6] CHU Nice, Gastroenterol, F-06202 Nice, France
[7] CHU Bordeaux, Gastroenterol, Bordeaux, France
[8] CHU Rouen, Gastroenterol, Rouen, France
[9] CHU Besancon, Gastroenterol, F-25030 Besancon, France
[10] CHU Toulouse, Gastroenterol, Toulouse, France
[11] Hop Henri Mondor, Gastroenterol, F-94010 Creteil, France
[12] Hop St Antoine, Gastroenterol, F-75571 Paris, France
[13] Hosp Clin Barcelona, Gastroenterol, Barcelona, Spain
[14] UCL St Luc, Gastroenterol, Brussels, Belgium
[15] Hosp Ramon & Cajal, Gastroenterol, E-28034 Madrid, Spain
[16] CHU Amiens, Gastroenterol, Amiens, France
[17] Hop Kremlin Bicetre, Gastroenterol, Le Kremlin Bicetre, France
[18] CHU Clermont Ferrand, Gastroenterol, Clermont Ferrand, France
[19] Hop Louis Mourier, Gastroenterol, F-92701 Colombes, France
[20] CHU St Etienne, Gastroenterol, St Etienne, France
[21] Univ Hosp Leuven, Gastroenterol, Leuven, Belgium
[22] Hosp Univ Mutua de Terrassa, Gastroenterol, Barcelona, Spain
[23] Univ Helsinki, Cent Hosp, Gastroenterol, Helsinki, Finland
[24] Hosp Univ La Princesa, Gastroenterol, Madrid, Spain
[25] Hop Lariboisiere, Gastroenterol, F-75475 Paris, France
[26] Hop Montfermeil, Gastroenterol, Montfermeil, France
[27] Ghent Univ Hosp, Gastroenterol, Ghent, Belgium
[28] Hop St Louis, SBIM, Paris, France
[29] Hop Univ Liege, Gastroenterol, Liege, Belgium