G. Lichtenstein¹, K. Barrett², D. Stefani-Hunyady³, F. Cataldi*⁴, J. Raskin⁵

¹University of Pennsylvania Healthy System, Inflammatory Bowel Disease Centre, Philadelphia, Pennsylvania, United States, ²Shire, Basingstoke, United Kingdom, ³Shire, Lexington, Massachusetts, United States, ⁴Shire, Gastroenterology, Lexington, Massachusetts, United States, ⁵University of Miami Health System, Gastroenterology and Internal Medicine, Miami, Florida, United States

C. Muñoz Villafranca*¹, A. Perez de Arenaza², L. Gómez³, R. Higuera⁴, A. Munagorri⁵, M. A. Ogueta⁶, S. Ibañez⁷, J. Ortiz de Zárate⁸, O. Merino³, C. Rodriguez⁹, O. Nante⁹, P. Arreba¹⁰, P. Ramirez de la Piscina¹¹, I. Rodríguez¹², A. Bernal¹³, J. A. Arévalo¹³, J. L. Cabriada¹³

¹Hospital Universitario de Basurto, Aparato Digestivo, Bilbao, Spain, ²Hospital Universitario de Basurto, Bilbao, Spain, ³Hospital Universitario de Cruces, Gastroenterology, Baracaldo, Spain, ⁴Hospital San Eloy, Gastroenterology, Baracaldo, Spain, ⁵Hospital Donostia, Gastroenterology, Donosti, Spain, ⁶Hospital de Santiago, Gastroenterology, Vitoria, Spain, ⁷Hospital Universitario de Cruces, Gastroenterology, Baracaldo, Spain, ⁸Hospital Universitario de Basurto, Gastroenterology, Bilbao, Spain, ⁹Hospital de Navarra, Gastroenterology, Pamplona, Spain, ¹⁰Hospital Universitario de Basurto, Gastroenterology, Bilbao, Spain, ¹¹Hospital de Txagorritxu, Gastroenterology, Vitoria, Spain, ¹²Hospital de Galdakao, Galdakao, Spain, ¹³Hospital de Galdácano, Gastroenterology, Galdácano, Spain

I. Rodríguez - Lago*^{1, 2}, O. Merino^{2, 3}, O. Nantes^{2, 4}, C. Muñoz^{2, 5}, U. Aguirre⁶, J. L. Cabriada^{1, 2}

¹Galdakao Hospital, Gastroenterology, Galdakao, Spain, ²IBD Study Group of the Basque – Navarre Society of Gastrointestinal Diseases, Pais Vasco - Navarra, Spain, ³Cruces University Hospital, Gastroenterology, Bilbao, Spain, ⁴Complejo Hospitalario de Navarra, Gastroenterology Department, Pamplona, Spain, ⁵Basurto University Hospital, Gastroenterology, Bilbao, Spain, ⁶Galdakao Hospital, Research Unit, Galdakao, Spain

M. Lie*, J. Kreijne, B. Hansen, J. van der Woude

Erasmus MC, Gastroenterology and Hepatology, Rotterdam, Netherlands

A. Stefani, M. G. Vettorato*, G. Lorenzon, T. Marcon, F. Simonetti, A. Rigo, E. V. Savarino, E. De Marchi, R. D’Incà, G. C. Sturniolo

University of Padua, Gastroenterology Unit, Department of Surgery, Oncology and Gastroenterology, University of Padua, Padua, Italy, Padua, Italy

S. Cox*¹, A. Prince^{1, 2}, C. Myers^{1, 3}, P. M. Irving^{1, 4}, J. O. Lindsay⁵, M. C. Lomer^{1, 4}, K. Whelan¹

¹King’s College London, School of Medicine, Diabetes and Nutritional Sciences Division, London, United Kingdom, ²King’s College Hospital NHS Foundation Trust, Nutrition and Dietetics, London, United Kingdom, ³The Royal Surrey County Hospital NHS Trust, Nutrition and Dietetics, Guildford, United Kingdom, ⁴Guy’s and St Thomas’ NHS Foundation Trust, Gastroenterology, London, United Kingdom, ⁵Barts Health NHS Trust, Gastroenterology, London, United Kingdom

M. Allocca*¹, G. Fiorino¹, C. Bonifacio², A. Spinelli³, A. Repici⁴, A. Malesci^{5, 6}, L. Balzarini², S. Danese^{1, 7}

¹Humanitas Research Hospital, IBD Centre, Gastroenterology, Rozzano, Milan, Italy, ²Humanitas Research Hospital, Radiology, Rozzano, Milan, Italy, ³Humanitas Research Hospital, IBD Surgery, Colo-rectal Surgery, Rozzano, Milan, Italy, ⁴Humanitas Research Hospital, Endoscopy Unit, Gastroenterology, Rozzano, Milan, Italy, ⁵Humanitas Research Hospital, Gastroenterology, Rozzano, Milan, Italy, ⁶University of Milan, Translational Medicine, Milan, Italy, ⁷Humanitas University, Biomedical Sciences, Rozzano, Milan, Italy

F. Fernández-Bañares*¹, M. Piqueras², D. Guagnozzi³, V. Robles⁴, A. Ruiz-Cerulla⁵, M. J. Casanova⁶, J. P. Gisbert⁶, D. Busquets⁷, A. Lucendo⁸, Y. Arguedas⁹, L. Fernández¹⁰

¹Hospital Universitari Mutua Terrassa, Gastroenterology, CIBERehd, Terrassa, Spain, ²Consorci Sanitari Terrassa, Gastroenterology, Terrassa, Spain, ³Hospital Vall d’Hebron, Gastroenterology, Barcelona, Spain, ⁴Hospital Vall d’Hebron, Department of Gastroenterology, Barcelona, Spain, ⁵Hospital de Bellvitge, Gastroenterology, L’Hospitalet de Llobregat, Spain, ⁶Hospital Universitario de La Princesa, Gastroenterology, CIBERehd, Madrid, Spain, ⁷Hospital Universitari Dr Josep Trueta, Department of Gastroenterology, Girona, Spain, ⁸Hospital General De Tomelloso, Department of Gastroenterology, Tomelloso, Spain, ⁹Hospital San Jorge, Gastroenterology, Huesca, Spain, ¹⁰Hospital University Clinic Valladolid, Department of Gastroenterology, Valladolid, Spain

R. Dudkowiak*, K. Neubauer, E. Poniewierka

Wroclaw Medical University, Department of Gastroenterology and Hepatology, Wroclaw, Poland

F. Casellas*^{1, 2}, C. Herrera de Guise¹, V. Robles¹, E. Navarro¹, N. Borruel¹

¹Hospital Universitari Vall d’Hebron, Unitat Atenció Crohn-Colitis, Barcelona, Spain, ²Hospital Universitari Vall d’Hebron, Barcelona, Spain

F. A. Lucca, C. Malaguti, A. L. Cabalzar, L. A. Chebli, T. C. R. Ribeiro*, P. D. Gaburri, J. M. F. Chebli

Universidade Federal de Juiz de Fora, Gastroenterology, Juiz de Fora, Brazil

K. H. Song*¹, Y. J. Lee², K. O. Kim³, H. S. Lee⁴, E. S. Kim², J. I. Koo¹, J. S. Jeong¹, W. S. Seo¹

¹Goo Hospital, General Surgery, Daegu, South Korea, ²Keimyung University School of Medicine, Internal Medicine, Daegu, South Korea, ³Yeungnam University College of Medicine, Internal Medicine, Daegu, South Korea, ⁴Kyungpook National University School of Medicine, Department of Internal Medicine, Daegu, South Korea

S. Raimundo Fernandes*, C. Baldaia, P. Moura Santos, A. Rita Gonçalves, A. Valente, L. Correia, J. Velosa

Centro Hospitalar Lisboa Norte, Gastrenterology, Lisbon, Portugal

P. Lakatos*¹, E. Domenech², H. Kellner³, J. Marsal⁴, H. Fowler⁵, C. Agboton⁵, N. Georgitseas⁶, M. Cassese⁷, S. Anwar⁶, A. Venugopal⁷, P. Audhya⁵

¹Semmelweis University, Budapest, Hungary, ²Hospital Universitari Germans Trias i Pujol., Badalona, Spain, ³Facharzt für Innere Medizin, Munich, Germany, ⁴Lund University, Lund, Sweden, ⁵Hospira, Warwickshire, United Kingdom, ⁶Navigant, London, United Kingdom, ⁷Navigant, New York, New York, United States

O. Knyazev¹, N. Fadeeva*², A. Kagramanova¹, P. Shcherbakov³, I. Ruchkina¹, A. Parfenov¹, A. Konoplyannikov⁴

¹Moscow Clinical Research Centre, Department of Inflammatory Bowel Disease, Moscow, Russian Federation, ²Moscow Clinical Research Centre, Department of Inflammatory bowel disease, Moscow, Russian Federation, ³Central Research Institute of Gastroenterology, Department of Inflammatory Bowel Disease, Moscow, Russian Federation, ⁴Medical Radiological Scientific Centre, Department of Stem Cells Therapy, Obninsk, Russian Federation

M. Ward*^{1, 2}, L. Beswick², P. Thwaites¹, J. Hogg¹, G. Rosella³, J. Reynolds⁴, D. Van Langenberg², P. Gibson^{1, 3}, M. Sparrow^{1, 3}

¹Alfred Hospital, Gastroenterology, Melbourne, Australia, ²Eastern Health, Gastroenterology, Melbourne, Australia, ³Monash University, Faculty of Medicine, Nursing and Health Sciences, Melbourne, Australia, ⁴Monash University, Biostatistics, Faculty of Medicine, Nursing and Health Sciences, Melbourne, Australia

W. K. van Deen*¹, M. Skup², A. Centeno¹, N. Duran¹, P. Lacey¹, D. Jatulis³, E. Esrailian¹, M. G. van Oijen⁴, D.W. Hommes¹

¹UCLA Centre for Inflammatory Bowel Diseases, Division of Digestive Diseases, University of California, Los Angeles, California, United States, ²AbbVie, US Immunology, North Chicago, Illinois, United States, ³Anthem Blue Cross, California, Woodland Hills, California, United States, ⁴Academic Medical Centre, Amsterdam, Department of Medical Oncology, Amsterdam, Netherlands

D. Hoekman*¹, J. Zeevenhooven², G. D’Haens³, M. Benninga¹

¹Academic Medical Centre (AMC), Department of Paediatric Gastroenterology, Amsterdam, Netherlands, ²Academic Medical Centre (AMC), Department of Paediatric Gastroenterology and Nutrition, Amsterdam, Netherlands, ³Academic Medical Centre (AMC), Department of Gastroenterology,

M. Meglicka*¹, M. Szczepanski², M. Dadalski², J. Kierkus²

¹The Children’s Memorial Health Institute, Department of Gastroenterology, Hepatology, Feeding Disorders and Paediatrics, Warsaw, Poland, ²The Children’s Memorial Health Institute, Department of Gastroenterology, Hepatology, Feeding Disorders and Paediatrics, Warsaw, Poland

B. Jackson*, D. Con, P. De Cruz

Austin Health, Gastroenterology, Melbourne, Australia