¹Academic Medical Center, Gastroenterology and Hepatology, Amsterdam, The Netherlands, ²Academic Medical Center, Coronel Institute of Occupational Health, Amsterdam, The Netherlands

¹Pusan National University, Pediatrics, Yansan, South Korea, ²Pusan National University Yangsan Hospital, Pediatrics, Yangsan, South Korea

¹A. Gemelli University Policlinic Foundation - Catholic University of Sacred Heart, Gastroenterological Area, Gastroenterological and Endocrino-Metabolical Sciences Department, Rome, Italy, ²A. Gemelli University Policlinic Foundation - Catholic University of Sacred Heart, Head and Neck Department-Ophthalmology Division, Rome, Italy, ³A. Gemelli University Policlinic Foundation - Catholic University of Sacred Heart, Hospital Nutrition Team, Rome, Italy, ⁴A. Gemelli University Policlinic Foundation - Catholic University of Sacred Heart, IBD Unit, Presidio Columbus, Rome, Italy

¹University of Bologna, Dept of Clinical and Surgical Sciences - IBD Unit, Bologna, Italy, ²IRCCS Policlinico San Donato, Milan, Italy, ³University of Milan, Milan, Italy

¹Reina Sofia University Hospital, Gastroenterology, Córdoba, Spain, ²Reina Sofia University Hospital, Nuclear Medicine, Córdoba, Spain, ³Instituto Maimónides de Investigación Biomédica de Córdoba, Córdoba, Spain

Med Taher Maamouri Hospital, GastroEnterology department, Nabeul, Tunisia

¹Kyung Hee University, School of Medicine, Seoul, South Korea, ²Sungkyunkwan University, School of Medicine, Seoul, South Korea, ³Seoul National University, College of Medicine, Seoul, South Korea, ⁴University of Ulsan College of Medicine, Asan Medical Center, Seoul, South Korea, ⁵Ewha Womans University, School of Medicine, Seoul, South Korea, ⁶St. Vincent's Hospital, The Catholic University, Seoul, South Korea, ⁷Kangbuk Samsung Hospital Sungkyunkwan University, Department of Internal Medicine, Seoul, South Korea, ⁸Korea University, College of Medicine, Seoul, South Korea, ⁹Eulji University, College of Medicine, Seoul, South Korea, ¹⁰Yonsei University, College of Medicine, Seoul, South Korea, ¹¹Janssen Korea, Medical affairs, Seoul, South Korea

¹Hospital Clínic Barcelona, IDIBAPS, CIBERehd, Barcelona, Spain, ²University of California San Diego, La Jolla, USA, ³Mayo Clinic, Division of Gastroenterology and Hepatology, Rochester, USA, ⁴University Hospitals Leuven, Leuven, Belgium, ⁵University of Birmingham, Birmingham, UK, ⁶AbbVie Inc., North Chicago, USA

¹Medical University of Vienna, Vienna, Austria, ²University of Calgary, Calgary, Canada, ³Imelda General Hospital, Bonheiden, Belgium, ⁴AZ Delta Roeselare-Menen, Menen, Belgium, ⁵Presidio Columbus, Fondazione Policlinico Gemelli Università Cattolica, Rome, Italy, ⁶Service de Gastroentérologie et Nutrition Clinique, Nice, France, ⁷Université de Nice-Sophia-Antipolis, Nice, France, ⁸Istituto Clinico Humanitas, Milan, Italy, ⁹University of California San Diego, La Jolla, USA, ¹⁰University Hospital Schleswig-Holstein, Kiel, Germany, ¹¹Academic Medical Center, Amsterdam, The Netherlands, ¹²AbbVie AB, Solna, Sweden, ¹³AbbVie Inc., North Chicago, USA, ¹⁴Icahn School of Medicine at Mount Sinai, New York, USA

¹Hospital Universitario de Fuenlabrada, Department of Gastroenterology, Fuenlabrada, Spain, ²Hospital Donostia/Instituto Biodonostia, Universidad del País Vasco UPV/EHU, Department of Gatroenterology, Donostia-San Sebastian, Spain, ³Centro de Investigación Biomédica en Red de Enfermedades Hepáticas y Digestivas (CIBERehd), Spain, Spain, ⁴Hospital Clinic de Barcelona, Department of Gastroenterology, Barcelona, Spain, ⁵Hospital Universitario de Cruces, Department of Gastroenterology, Baracaldo, Vizcaya, Spain, ⁶Hospital Universitario Clínico de Valencia, Department of Medicine, University of Valencia, Valencia, Spain, ⁷Hospital Universitari de Bellvitge-IDIBELL, Department of Gastroenterology, Barcelona, Spain, ⁸Hospital General Universitario de Alicante, Department of Gastroenterology, Alicante, Spain, ⁹Hospital de la Santa Creu i Sant Pau, Department of Gastroenterology, Barcelona, Spain, ¹⁰Complexo Hospitalario Universitario de Vigo, Instituto de Investigación Biomédica. Estructura Organizativa de Xestión Integrada de Vigo, Department of Gastroenterology, Vigo, Spain, ¹¹Hospital Universitari i Politecnic La Fe, Department of Gastroenterology, Valencia, Spain, ¹²Hospital Universitario Rio Hortega, Department of Gastroenterology, Valladolid, Spain, ¹³Hospital Clínico San Carlos and Instituto de Investigación del Hospital Clínico San Carlos (IdISSC), Department of Gastroenterology, Madrid, Spain, ¹⁴Hospital de Galdakao, Department of Gastroenterology, Galdakao, Vizcaya, Spain, ¹⁵Hospital Universitario Ramón y Cajal, Department of Gastroenterology, Madrid, Spain, ¹⁶Hospital Universitario Central De Asturias, Department of Gastroenterology, Oviedo, Spain, ¹⁷Hospital 12 de Octubre, Department of Gastroenterology, Madrid, Spain, ¹⁸Hospital Universitario de La Princesa, Gastroenterology Unit, IIS-IP, Madrid, Spain, ¹⁹Hospital Universitario Nuestra Señora Candelaria, Department of Gastroenterology, Santa Cruz De Tenerife, Spain, ²⁰Hospital Universitario Marques de Valdecilla, Department of Gastroenterology, Unit EII, Santander, Spain, ²¹Hospital Universitario La Paz, Department of Gastroenterology, Madrid, Spain, ²²Hospital Universitari Germans Trias I Pujol, Department of Gastroenterology, Badalona, Spain, ²³Hospital Universitario Miguel Servet, Department of Gastroenterology, Zaragoza, Spain, ²⁴Hospital Universitario de Burgos, Department of Gastroenterology, Burgos, Spain, ²⁵Hospital Clínico Universitario de Valladolid, Department of Gastroenterology, Valladolid, Spain, ²⁶Hospital Universitario de Salamanca, Department of Gastroenterology, Salamanca, Spain, ²⁷Parc de Salut Mar, Department of Gastroenterology, Barcelona, Spain, ²⁸Hospital Universitario Reina Sofia, Department of Gastroenterology, Córdoba, Spain, ²⁹Hospital General San Jorge, Department of Hepatology and Gastroenterology, Huesca, Spain, ³⁰Consorci Sanitari Terrassa, Terrassa, Spain, ³¹Hospital Clínico Universitario "Lozano Blesa" and Aragón Health Research Institute (IIS Aragón), Department of Gastroenterology, Zaragoza, Spain, ³²Hospital de Manises, Department of Gastroenterology, Valencia, Spain, ³³Hospital General Universitario de Valencia, Department of Gastroenterology, Valencia, Spain, ³⁴Hospital Universitario Fundación Alcorcón, Department of Gastroenterology, Madrid, Spain, ³⁵Hospital Universitario de Torrejón, Department of Gastroenterology, Torrejón De Ardoz, Spain, ³⁶Complejo hospitalario de Navarra, Department of Gastroenterology and Hepatology, Pamplona, Spain, ³⁷Corporació Sanitària Universitària Parc Taulí, Universitat Autònoma de Barcelona, Sabadell, Spain, ³⁸Hospital Universitario de Basurto, Department of Gastroenterology, Bilbao, Spain, ³⁹Hospital de Elche, Department of Gastroenterology, Alicante, Spain, ⁴⁰Head, Liver Diseases Group Biodonostia Research Institute-Donostia University Hospital- Assistant Professor of Medicine/Sciences University of Navarra, USA., Donostia, Spain

School of Medicine Federico II of Naples, Department of Clinical Medicine and Surgery, Naples, Italy

¹Sheba Medical Center, Institute of Gastroenterology, Ramat Gan, Israel, ²Policlinico Universitario “A Gemelli”, UO di Endoscopia Digestiva Chirurgica, Rome, Italy, ³Complejo Hospitalario de Navarra, Servicio de Digestivo, Pamplona, Spain, ⁴Sourasky Medical Center, Gastroenterology, Tel-Aviv, Israel, ⁵Shaare Tzedek Medical Center, Gastroenterology, Jerusalem, Israel, ⁶Medtronic Inc., Yoqneam, Israel

¹Hyogo College of Medicine, Department of Inflammatory Bowel Disease, Nishinomiya, Hyogo, Japan, ²Hyogo College of Medicine, Department of Intestinal Inflammation Research, Nishinomiya, Hyogo, Japan

¹Shaare Zedek Medical Center, Digestive Diseases Institute, Jerusalem, Israel, ²Shaare Zedek Medical Center, Digestive diseases institute, Jerusalem, Israel, ³Sheba Medical Center, Gastroenterology, Ramat Gan, Israel, ⁴Shaare Zedek Medical Center, Department of Obstetrics and Gynecology, Division of Maternal Fetal Medicine, Jerusalem, Israel

¹East Kent Hospitals University NHS Foundation Trust, Gastroenterology, Canterbury, UK, ²Medway Maritime Hospital, Gastroenterology, Gillingham, UK

¹Icahn School of Medicine at Mount Sinai, New York, USA, ²Janssen Scientific Affairs, LLC., Horsham, USA, ³Janssen Biologics B.V, Leiden, The Netherlands, ⁴Amaris International Consultancy, Toronto, Canada, ⁵University Hospital, Gasthuisberg, Leuven, Belgium, ⁶University of Birmingham, Birmingham, UK, ⁷University of California San Diego, La Jolla, USA, ⁸University of Western Ontario, Robarts Research Institute, London, Canada

¹University Hospital Birmingham, Department of Gastroenterology, Birmingham, UK, ²Institute of Translational Medicine, Birmingham, UK, ³University Hospital Birmingham, Histopathology, Birmingham, UK

¹Hospital for Sick Children, University of Toronto, Toronto, Canada, ²Erasmus Medical Center Children's Hospital, Department of Paediatric Gastroenterology, Rotterdam, The Netherlands, ³The Juliet Keidan Institute of Pediatric Gastroenterology and Nutrition, Shaare Zedek Medical Center, Jerusalem, Israel, ⁴Children's Hospital of Eastern Ontario, Department of Gastroenterology, Hepatology and Nutrition, Ottawa, Canada

St Vincent's Hospital Melbourne, Gastroenterology, Fitzroy, Australia

Centro Hospitalar Vila Nova de Gaia/Espinho, Gastroenterology, Vila Nova de Gaia, Portugal