¹National Taiwan University Hospital and College of Medicine, Internal Medicine, Taipei, Taiwan, ²Division of Gastroenterology, Department of Internal Medicine, MacKay Memorial Hospital, Taipei, Taiwan, ³Department of Internal Medicine, Far Eastern Memorial Hospital, Taipei, Taiwan, ⁴Department of Internal Medicine, National Taiwan University Hospital, Taipei, Taiwan, ⁵Health Data Research Center, National Taiwan University, Taipei, Taiwan, ⁶Department of Internal Medicine, West Garden Hospital, Taipei, Taiwan, ⁷Inflammatory Bowel Disease Clinical and Study Integrated Center, National Taiwan University Hospital, Taipei, Taiwan

¹Medical Centre – University of Freiburg, Department of Medicine II, Freiburg, Germany, ²Faculty of Medicine, University of Freiburg, Berta-Ottenstein-Programme, Freiburg, Germany

¹University of Exeter, Exeter IBD Pharmacogenetics Research Group, Exeter, UK, ²Royal Devon and Exeter NHS Foundation Trust, Department of Gastroenterology, Exeter, UK, ³University of Exeter Medical School, Genetics of Complex Traits, Exeter, UK

¹Gastroadvanced, Gastroenterology, Bogota, Colombia, ²Hospital San Pedro, Gastroenterology, Pasto, Colombia, ³Centro Médico Imbanaco, Gastroenterology, Cali, Colombia, ⁴Fundación Cardioinfantil, Gastroenterology, Bogota, Colombia, ⁵Clínica Universitaria Colombia, Gastroenterology, Bogota, Colombia, ⁶Universidad de Caldas, Gastroenterology, Manizales, Colombia, ⁷Unión de Cirujanos SAS, Gastroenterology, Manizales, Colombia, ⁸Intergastro, Gastroenterology, Medellin, Colombia, ⁹Gastroadvanced, Gastroenterology, Medellin, Colombia, ¹⁰Takeda Colombia, Medical, Bogota, Colombia, ¹¹Clínica Las Americas, Coloproctology, Medellin, Colombia

¹Hospital da Senhora da Oliveira, Gastreterology, Guimarães, Portugal, ²Life and Health Sciences Research Institute (ICVS), School of Medicine, University of Minho, Braga, Portugal, ³ICVS/3B’s, PT Government Associate Laboratory, Guimarães/Braga, Portugal

¹All India Institute of Medical Sciences, Gastroenterology, Delhi, India

¹IBD Section B. Udaondo Hospital, Medicine, Caba, Argentina, ²Laboratory of Investigation in Gastroenterology, Caba, Argentina

¹Hospital Universitario Virgen Macarena, Gastroenterology Unit, Seville, Spain, ²Hospital Universitario Virgen Macarena, Pharmacology, Seville, Spain

¹Amsterdam UMC – Location AMC, Radiology and Nuclear Medicine, Amsterdam, The Netherlands, ²Amsterdam UMC – Location AMC, Anaesthesiology, Amsterdam, The Netherlands, ³Amsterdam UMC – Location AMC, Surgery, Amsterdam, The Netherlands, ⁴Amsterdam UMC – Location AMC, Gastroenterology, Amsterdam, The Netherlands

¹Coimbra Hospital and University Centre, Gastroenterology, Coimbra, Portugal

¹Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, SP, Brazil, Surgery and Anatomy, Ribeirão Preto, SP, Brazil, ²Ribeirão Preto Medical School, University of São Paulo, Division of Gastroenterology, Department of Medicine, Ribeirão Preto – SP, Brazil

¹Department of Health Management and Health Economics, The University of Oslo, Oslo, Norway, ²Department of Gastroenterology, Oslo University Hospital, Oslo, Norway

¹King's College London, Faculty of Life Sciences and Medicine, Department of Nutritional Sciences, London, UK, ²King's College London, Faculty of Nursing, Midwifery and Palliative Care, London, UK, ³King's College London, Institute of Pharmacological Sciences, London, UK, ⁴King's College London, Department of Nutritional Sciences, London, UK, ⁵Queen Mary University of London, Blizard Institute, Barts and the London School of Medicine, London, UK, ⁶Barts Health NHS Trust, The Royal London Hospital, London, UK, ⁷King's College Londom, Faculty of Life Sciences and Medicine, School of Life Course Sciences, London, UK

¹Department of Public Health and Clinical Medicine, Umeå University, Medicine, Umeå, Sweden, ²Department of Medical Biosciences, Umeå University, Clinical Chemistry, Umeå, Sweden

¹Department of Gastroenterology and Hepatology, University Hospitals Leuven, Catholic University of Leuven, Leuven, Belgium, ²Imelda General Hospital, Department of Gastroenterology, Bonheiden, Belgium, ³Pentax Medical, Product Development Department, Tokyo, Japan, ⁴ Department of Pathology, University Hospitals Leuven, Catholic University of Leuven, Leuven, Belgium

¹Department of Gastroenterology, St. Vincent's Hospital, Melbourne, Australia, ²Department of Medicine, The University of Melbourne, Melbourne, Australia, ³ Department of Radiology, St. Vincent's Hospital, Melbourne, Australia

¹Samsung Medical Center, Seoul, South Korea

¹ASST Papa Giovanni XXIII, General and Emergency Surgery, Bergamo, Italy, ²ASST Papa Giovanni XXIII, Gastroenterology and Digestive Endoscopy, Bergamo, Italy

¹The Sixth Affiliated Hospital of Sun Yat-sen University, Department of Colorectal Surgery, Guangzhou, China, ²Institute of Clinical Pharmacology, School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou, China

¹IRCCS Policlinico San Donato, Gastroenterology and Digestive Endoscopic Unit, San Donato Milanese, Milan, Italy, ²Department of Surgery, Oncology and Gastroenterology, University of Padua, Padua, Italy, ³IRCCS Policlinico San Donato, San Donato Milanese, Milan, Italy, ⁴IRCCS Policlinico San Donato, Gastroenterology and Digestive Endoscopy Unit, San Donato Milanese, Milan, Italy, ⁵Gastroenterology Unit, Ospedale Valduce, Como, Italy, ⁶Gastroenterology and Digestive Endoscopic Unit, Ospedale Morgagni Pierantoni, Forlì, Italy, ⁷Department of Interdisciplinary Endoscopy, I Medical Clinic and Polyclinic, University Hospital Mainz, Mainz, Germany, ⁸Gastroenterology Division, San Gerardo Hospital, ASST Monza, Monza, Italy, ⁹Gastroenterology and Endoscopy Unit, IRCCS Ca' Granda Ospedale Maggiore Policlinico Foundation, Milan, Italy