G. Fiorino¹, L. Peyrin-Biroulet², C. Bonifacio³, P. Naccarato¹, G. Lo Bue³, A. Malesci⁴, O. Sociale¹, L. Balzarini³, S. Danese¹, ¹IRCSS Humanitas, IBD Center, Rozzano, Italy, ²Nancy University Hospital, Iinserm U954, Nancy, France, ³IRCCS Humanitas, Radiology, Rozzano, Italy, ⁴IRCCS Humanitas, Gastroenterology and Digestive Endoscopy, Rozzano, Italy

M. Fekih*¹, A. Laabidi², L. Kallel², R. Ben Jemaa², N. Ben Mustapha², M. Serghini², J. Boubaker², A. Filali²

¹La Rabta hospital , Gastro enterology"A", Bab Saadoun, Tunisia, ²La Rabta hospital, Gastro enterology"A", Bab Saadoun, Tunisia

S. Boyer¹, E. Guillot², D. Marion², G. Boschetti¹, P.-J. Valette², B. Flourié¹, S. Nancey¹, ¹Hospices Civils de Lyon, Lyon-Sud hospital, Gastroenterology, Pierre Benite, France, ²Hospices Civils de Lyon, Lyon-Sud hospital, Radiology, Pierre Benite, France

G. Lang¹, V. Nicolas², L. Kübler², W. Schmiegel¹, T. Brechmann¹, ¹Ruhr-University-Bochum, Gastroenterology, Bochum, Germany, ²Ruhr-University-Bochum, Radiology, Bochum, Germany

T. Takagi*¹, T. Yoshino², S. Bamba³, K. Uchiyama¹, Y. Naito¹, M. Matsuura², H. Nakase², T. Tsujikawa³, A. Andoh³, T. Kogawa⁴

¹Kyoto Prefectural University of Medicine, Molecular Gastroenterology and Hepatology, Kyoto, Japan, ²Kyoto University Hospital, Department of Gastroenterology and Hepatology, Kyoto, Japan, ³Shiga University of Medical Science, Department of Medicine, Otsu, Japan, ⁴Kogawa Internal Medicine Clinic, Internal Medicine Clinic, Kyoto, Japan

A. Lupu¹, C. Cijevschi², C. Mihai², R. Iacob¹, L. Gheorghe¹, D. Dobru³, A. Tantau⁴, A. Goldis⁵, M. Ilie⁶, C. Gheorghe¹, M. Ciocirlan¹, M. Diculescu¹, on behalf of the IBDPROSPECT Study Group, ¹Fundeni Clinical Institute, Digestive Diseases and Liver Transplantation Center, Bucharest, Romania, ²Institute of Gastroenterology and Hepatology, Bd. Independentei, no. 1, Gastroenterology and Hepatology, Iasi, Romania, ³Municipal Hospital Targu Mures, Gastroenterology, Targu Mures, Romania, ⁴3rd Medical Clinic Cluj-Napoca, Gastroenterology, Cluj-Napoca, Romania, ⁵University of Medicine ‘Victor Babes’, Clinic of Gastroenterology, Timisoara, Romania, ⁶Floreasca Emergency Hospital, Gastroenterology, Bucharest, Romania

F. Mocciaro¹, R. Di Mitri¹, S. Leone², A. Calì¹, A. Marino¹, ¹Gastroenterology and Endoscopy Unit, ARNAS Civico-Di Cristina-Benfratelli Hospital, Palermo, Italy, ²CEO of AMICI, Palermo, Italy

A. Buisson*^{1, 2}, J. FILIPPI³, A. Amiot⁴, G. Cadiot⁵, M. Allez⁶, P. Marteau⁷, Y. Bouhnik⁸, G. Pineton de Chambrun⁹, A.-l. Pelletier¹⁰, S. Nancey¹¹, D. Moussata¹¹, A. Attar⁸, A. Blain¹², L. Vuitton¹³, G. Vernier-Massouille¹⁴, P. Seksik¹⁵, M. Nachury¹⁶, J.-L. Dupas¹⁷, R. Modigliani⁶, L. Peyrin-Biroulet¹⁸, J.-Y. Mary¹⁹, E. Louis²⁰

¹University Hospital Estaing, Gastroenterology Department, Clermont-Ferrand, France, ²UMR 1071 Inserm/Université d'Auvergne; USC-INRA 2018, Microbes, Intestine, Inflammation and Susceptibility of the host, Clermont-Ferrand, France, ³Archet 2 University Hospital, Department of Gastroenterology, Nice, France, ⁴Hospital Henri-Mondor, Department of Gastroenterology, Creteil, France, ⁵University hospital of Reims, Gastroenterology, Reims, France, ⁶APHP, Hopital Saint Louis, Department of Gastroenterology, Paris, France, ⁷Hopital Lariboisiere, Gastroenterologie, Paris, France, ⁸Beaujon Hospital, Department of Gastroenterology, Clichy la Garenne, France, ⁹CHU de Montpellier, Department of Gastroenterology, Montpellier, France, ¹⁰APHP, Bichat Hospital, Gastroenterology Department, Paris, France, ¹¹Hospices Civils de Lyon, Lyon-Sud hospital, Gastroenterology, Pierre Benite, France, ¹²APHP-IMM, Gastroenterology Department, Paris, France, ¹³University hospital of Besançon, Gastroenterology, Besançon, France, ¹⁴Tourcoing Hospital, Gastroenterology Department, Tourcoing, France, ¹⁵University Hospital of Saint Antoine, APHP, Gastroenterology, Paris, France, ¹⁶University hospital of Lille, Gastroenterology, Lille, France, ¹⁷Amiens University Hospital, Gastroenterology, Amiens, France, ¹⁸CHU Nancy Brabois, Department of Gastroenterology, Vandoeuvre les Nancy, France, ¹⁹University Paris VII, Biostatistics Department, Jussieu, France, ²⁰CHU de Liege, Department of Gastroenterology, Liege, Belgium

G. Sirin, A. Celebi, O. Senturk, S. Hülagu, Kocaeli University, Gastroenterology, Kocaeli, Turkey

L. Kuznetsova¹, S. Petrichuk¹, I. Samohina¹, A. Potapov², E. Tsimbalova², M. Venediktova², ¹Scientific Center of Children's Health, Cytochemical laboratory, Moscow, Russian Federation, ²Scientific Center of Children's Health, Gastroenterology department, Moscow, Russian Federation

I. Ordas*¹, J. Rimola¹, G. Zou^{2, 3}, C. Santillan⁴, K. Horsthuis⁵, S. Taylor⁶, J. Panes¹, R. Khanna^{2, 7}, J. Stoker⁸, L. Stitt², G. D'Haens^{2, 9}, W.J. Sandborn^{2, 10}, B.G. Feagan^{2, 3, 7}, M.K. Vandervoort², B.G. Levesque^{2, 10}

¹Hospital Clinic de Barcelona, IDIBAPS and CIBERehd, Gastroenterology Unit, Barcelona, Spain, ²Robarts Clinical Trials Inc., Robarts Research Institute, University of Western Ontario, London, Ontario, Canada, ³University of Western Ontario, Department of Epidemiology and Biostatistics, London Ontario, Canada, ⁴University of California, UCSD Inflammatory Bowel Disease Center, San Diego CA, United States, ⁵Academic Medical Center, Inflammatory Bowel Disease Center, Amsterdam, Netherlands, ⁶University College London, Department of Medical Imaging, London, United Kingdom, ⁷University of Western Ontario, Department of Medicine, London , Canada, ⁸Academic Medical Center Amsterdam, Department of Internal Medicine, Amsterdam, Netherlands, ⁹University of Amsterdam, Academic Medical Center, Amsterdam, Netherlands, ¹⁰University of California San Diego, Division of Gastroenterology, La Jolla, United States

L. Marthey¹, C. Mateus², M. Nachury³, S. Nancey⁴, F. Grange⁵, C. Zallot⁶, J.F. Rahier⁷, M. Bourdier de Beauregard⁸, L. Peyrin-Biroulet⁶, L. Mortier⁹, C. Robert², F. Carbonnel¹⁰, ¹Beclere Hospital, Gastroenterology, Clamart, France, ²Gustave Roussy Institute, Dermatology, Villejuif, France, ³Huriez Hospital, Gastroenterology, Lille, France, ⁴Lyon Sud Hospital, Gastroenterology, Pierre Benite, France, ⁵Debre Hospital, Dermatology, Reims, France, ⁶Brabois Hospital, Gastroenterology, Vandoeuvre les Nancy, France, ⁷Mont Godinne Hospital, Gastroenterology, Yvoir, Belgium, ⁸Minjoz Hospital, Gastroenterology, Besançon, France, ⁹Huriez Hospital, Dermatology, Lille, France, ¹⁰Bicetre Hospital, Gastroenterology, Kremlin-Bicetre, France