I. Alfaro*¹, I. Ordás¹, S. Rodríguez², J. Castro¹, A. López¹, T. Pérez³, A. Cofiño⁴, A. Ramírez-Morros¹, M. Gallego¹, R. Barastegui¹, A. Giner¹, M. Masamunt¹, E. Ricart¹, J. Rimola², J. Panés¹

¹Hospital Clinic de Barcelona, Department of Gastroenterology, Barcelona, Spain, ²Hospital Clinic, Radiology Department, Barcelona, Spain, ³Hospital San Borja Arriaran, Department of Gastroenterology, Santiago, Chile, ⁴Fundación Hospital de Jove, Department of Radiology, Gijon, Spain

A. Iannone*, G. Losurdo, M. Barone, E. Ierardi, A. Di Leo, M. PRINCIPI

University of Bari, DETO, Bari, Italy

J. Scott*¹, U. Nosegbe², R. Butcher², A. Abbassi², R. Prudham², R. George², J. Limdi²

¹Penine Acute Hospitals NHS Trust, Gastroenterology, Manchester, United Kingdom, ²Pennine Acute Hospitals NHS Trust, Department of Gastroenterology, Manchester, United Kingdom

J. Ten Hove*¹, E. Mooiweer¹, A. Van der Meulen², E. Dekker³, C. Ponsioen³, B. Oldenburg¹

¹University Medical Centre Utrecht, Utrecht, Netherlands, ²Leiden University Medical Centre, Leiden, Netherlands, ³Amsterdam Medical Centre, Amsterdam, Netherlands

B. Truta*, J. Canner, J. Efron, B. Safar

Johns Hopkins University, Baltimore, United States

D. Lorenzo*¹, F. Maire², C. Stefanescu², J. M. Gornet³, P. Seksik⁴, J. C. Grimaud⁵, B. Bournet⁶, P. Marteau⁴, A. Amiot⁷, D. Laharie⁸, C. Trang⁹, B. Coffin¹⁰, G. Bellaiche¹¹, G. Cadiot¹², C. Reenaers¹³, A. Racine¹⁴, S. Viennot¹⁵, A. Pauwels¹⁶, G. Bouguen¹⁷, G. Savoye¹⁸, A. L. Pelletier¹⁹, G. Pineton de Chambrun²⁰, P. Lahmek²¹, S. Nahon²², V. Abitbol²³

¹Hôpital Cochin AP-HP, Paris, France, ²CHU Beaujon, Clichy, France, ³Hôpital Saint Louis, Paris, France, ⁴Hôpital Saint-Antoine, Paris, France, ⁵Hôpital Nord, Marseille, France, ⁶CHU Toulouse, Toulouse, France, ⁷CHU Henri Mondor, Créteil, France, ⁸Hôpital Haut Lévêque, Bordeaux, France, ⁹CHU Nantes, Nantes, France, ¹⁰CHU Louis Mourier, Colombes, France, ¹¹CH d’Aulnay, Aulnay, France, ¹²CHU Reims, Reims, France, ¹³CH Liège, Liège, Belgium, ¹⁴CH Kremlin Bicêtre, Kremlin Bicêtre, France, ¹⁵CHU Caen, Caen, France, ¹⁶CH Gonesse, Gonesse, France, ¹⁷CHU Rennes, Rennes, France, ¹⁸CHU Rouen, Rouen, France, ¹⁹Hôpital Bichat, Paris, France, ²⁰CHU Montpellier, Montpellier, France, ²¹Hôpital Emile Roux, Gastroenterology Addictology, Limeil-Brevannes, France, ²²Centre Hospitalier Le Raincy, Gastroenterology, Montfermeil, France, ²³Hôpital Cochin AP-HP, Gastroenterology, Paris, France

N. Sengul Samanci¹, S. Poturoglu², C. Samanci³, A. E. Duman*², A. Ciftcibasi Ormeci²

¹Haseki Training and Research Hospital, Internal Medicine, Istanbul, Turkey, ²Haseki Training and Research Hospital, Gastroenterology, Istanbul, Turkey, ³Istanbul University Cerrahpasa Medical Faculty, Department of Radiology, Istanbul, Turkey

I. Goren*¹, L. Yahav², H. Tulchinsky^{3, 4}, I. Dotan^{4, 5}

¹Tel Aviv medical Centre, IBD Centre, Department of Gastroenterology and Liver Diseases, Tel Aviv Sourasky Medical Centre, Tel Aviv, Israel, ²Tel Aviv Medical Centre, IBD Centre, Department of Gastroenterology and Liver Diseases, Tel Aviv Sourasky Medical Centre, Tel Aviv, Israel, ³Sackler Faculty of Medicine, Tel Aviv Israel, Department of Surgery, Tel Aviv Sourasky Medical Centre, Tel Aviv, Israel, ⁴Tel Aviv medical Centre, Tel Aviv Israel, Pouch clinic, IBD Centre, Tel Aviv, Israel, ⁵Sackler Faculty of Medicine, Tel Aviv Israel, IBD Centre, Department of Gastroenterology and Liver Diseases, Tel Aviv Sourasky Medical Centre, Tel Aviv, Israel

P. Bossuyt*^{1, 2}, C. Debeuckelaere¹, T. Billiet¹, I. Cleynen³, A. de Buck van Overstraeten⁴, A. Wolthuis⁴, M. Ferrante¹, G. Van Assche¹, A. D’hoore⁴, S. Vermeire¹

¹University Hospitals Leuven, Department of Gastroenterology, Leuven, Belgium, ²Imelda GI Clinical Research Centre, Department of Gastroenterology, Bonheiden, Belgium, ³KU Leuven, Human Genetics, Leuven, Belgium, ⁴UZ Leuven, Campus Gasthuisberg, Department of Abdominal Surgery, Leuven, Belgium

E. Eliadou*, J. Brooks, S. Levison, H. Y. Lee

Central Manchester Foundation Trust, Gastroenterology, Manchester, United Kingdom

K. Atay*, Y. Erzin, I. Hatemi, T. Eskazan, I. Serin, S. Bozcan, N. Demir, A. F. Celik

Istanbul University Cerrahpasa Medical School, Gastroenterology, Istanbul, Turkey

S. W. Hwang*¹, M. S. Kwak¹, W. S. Kim¹, J.-M. Lee¹, S. H. Park¹, H.-S. Lee¹, D.-H. Yang¹, K.-J. Kim¹, B. D. Ye¹, J.-S. Byeon¹, S.-J. Myung¹, Y. S. Yoon², C. S. Yu², J.-H. Kim¹, S.-K. Yang¹

¹University of Ulsan College of Medicine, Asan Medical Centre, Department of Gastroenterology, Seoul, South Korea, ²University of Ulsan College of Medicine, Asan Medical Centre, Department of Colon and Rectal Surgery, Seoul, South Korea

A. Clos¹, P. Rodríguez-Martínez², M. Manyosa³, A. Ruiz-Cerulla⁴, M. J. Paúles⁵, J. Llaó⁶, J. Gordillo⁶, C. Fumagalli⁷, T. Lobatón³, I. Ojanguren², E. Cabré³, J. Guardiola⁴, E. Domènech*³

¹Hospital Universitari Germans Trias i Pujol, Gastroenterology, Badalona, Spain, ²Hospital Universitari Germans Trias i Pujol, Pathology, Badalona, Spain, ³Hospital Germans Trias i Pujol. CIBEREHD, Gastroenterology, Badalona, Spain, ⁴Hospital de Bellvitge. IDIBELL, Gastroenterology, L’Hospitalet de Llobregat, Spain, ⁵Hospital de Bellvitge., Pathology, L’Hospitalet de Llobregat, Spain, ⁶Hospital de la Santa Creu i Sant Pau, Gastroenterology, Barcelona, Spain, ⁷Hospital de la Santa Creu i Sant Pau, Pathology, Barcelona, Spain

J. Limsrivilai^{1, 2}, A. Shreiner², P. D. Higgins*³

¹Mahidol University, Bangkok, Thailand, ²University of Michigan, Internal Medicine - Gastroenterology, Ann Arbor, Michigan, United States, ³University of Michigan, Internal Medicine - Gastroenterology, Ann Arbor, Michigan, United States

N. Krugliak Cleveland*, D. Rubin, K. Meckel, A. Tran, A. Gonsalves, J. Gaetano, K. Williams, B. Jabri, J. Pekow

University of Chicago Medicine, Inflammatory Bowel Disease Centre, Chicago, Illinois, United States

A. Bálint*¹, K. Farkas¹, Z. Szepes¹, F. Nagy¹, M. Szücs², L. Tiszlavicz³, R. Bor¹, A. Milassin¹, M. Rutka¹, A. Fábián⁴, T. Molnár⁵

¹University of Szeged, 1st Department of Medicine, Szeged, Hungary, ²University of Szeged, Department of Medical Physics and Informatics, Szeged, Hungary, ³University of Szeged, Department of Pathology, Szeged, Hungary, ⁴University of Szeged, First Department of Medicine, Szeged, Hungary, ⁵University of Szeged, First Department of Medicine, Szeged, Hungary

M. Lopes¹, A. Lyra^{1, 2}, R. Rocha³, C. Factum³, L. Sales³, L. Mello³, C. Lima², B.C. da Silva*², G. Santana^{1, 2}

¹Federal University of Bahia, Post-graduate Programme in Medicine and Health, Salvador, Brazil, ²Federal University of Bahia, Gastroenterology Unit, University Hospital Professor Edgard Santos, Salvador, Brazil, ³Federal University of Bahia, Department of Sciences of Nutrition, Salvador, Brazil

P. J. H. Engel*^{1, 2}, S. Holck³, U. H. Engel³

¹Roskilde Hospital, Department of Pathology, Roskilde, Denmark, ²University of Copenhagen, Faculty of Health and Medical Sciences, Copenhagen, Denmark, ³Copenhagen University Hospital, Department of Pathology, Hvidovre, Denmark

M. Ascolani¹, C. Mescoli², M. Rugge², S. Onali¹, G. Sica³, C. Petruzziello¹, G. Palmieri¹, E. Calabrese¹, A. Ruffa¹, F. Pallone¹, M. Rugge², L. Biancone*⁴

¹University ‘Tor Vergata’ of Rome, Department of Systems Medicine, Rome, Italy, ²University of Padova, Department of Medicine, dimed, Pathology Unit, Padua, Italy, ³University ‘Tor Vergata’ of Rome, Department of Surgery, Rome, Italy, ⁴University, Department of Systems Medicine, Rome, Italy

A. Mohammadi*, O.B. Kelly, S. Maltais, R. Milgrom, M. S. Silverberg

Mount Sinai Hospital, Toronto, Canada