¹Hospices Civils de Lyon, Gastroenterology, PIERRE BENITE, France, ³CHU Saint Etienne, Gastroenterology, Saint Etienne, France, ⁴Hospices Civils de Lyon, Biochemistry, Pierre Benite, France, ⁵Hospices Civils de Lyon, Gastroenterology Paediatry, Bron, France, ⁶CHU Saint Etienne, GIMAP, Saint Etienne, France

¹University of Padua, Department of Surgery, Oncology and Gastroenterology, Gastroenterology Section, Padova, Italy, ²University of Padua, Department of Biotechnology, Verona, Italy, ³S.Maria del Prato Hospital, Department of Oncological Gastrointestinal Surgery, Feltre( BL), Italy, ⁴University of Padua, Department of Oncological Gastrointestinal Surgery, Padova, Italy, ⁵University of Padua, Department of Biology, Padova, Italy

¹King's College London, Nutritional Sciences Division, London, UK, ²Guy's and St Thomas' NHS Foundation Trust, Nutrition and Dietetics, London, UK, ³St George’s Hospital NHS Foundation Trust, Gastroenterology, London, UK, ⁴Guy's and St Thomas' NHS Foundation Trust, Colorectal Surgery, London, UK, ⁵Guy’s and St Thomas’ NHS Foundation Trust, Gastroenterology, London, UK

¹University of Medical Sciences, General, Endocrynological Surgery and Gastrointestinal Oncology, Poznań, Poland

¹The Sixth Affiliated Hospital of Sun Yat-sen University, Guangzhou, China

¹Evangelismos Hospital, Gastroenterology Department, Athens, Greece, ²Medical School, National and Kapodistrian University of Athens, Department of Molecular Biology, Athens, Greece

¹St Vincent's Hospital, Gastroenterology, Melbourne, Australia, ²Alfred Health, Gastroenterology, Melbourne, Australia, ³Monash University Central Clinical School, Melbourne, Australia

¹Robarts Clinical Trials, Western University, London, Canada, ²Academic Medical Center, Amsterdam, The Netherlands, ³Celgene Corporation, Summit, USA, ⁴Mayo Clinic, Scottsdale, USA

¹UniversitätsSpital Zürich, Zürich, Switzerland, ²Crohn Colitis Zentrum Bern, Bern, Switzerland, ³Universitätsspital Basel, Basel, Switzerland, ⁴Universitätsklinik Inselspital, Bern, Switzerland, ⁵Université de Lausanne, Lausanne, Switzerland

¹Beth Israel Deaconess Medical Center, Gastroenterology, Boston, USA, ²Stanford University Medical Center, Gastroenterology, Stanford, USA, ³University of Copenhagen, Clinical Medicine, Copenhagen, Denmark

¹Faculdade Farmacia Universidade Lisboa, iMed - Research Institute for Medicines, Lisboa, Portugal, ²Samsung Bioeips Co., Ltd., Incheon, South Korea

¹Erasmus Medical Center - Sophia Children's Hospital, Paediatric gastroenterology, Rotterdam, The Netherlands

¹Western University, Department of Medicine, Division of Gastroenterology, London, Ontario, Canada, ²King Fahad Specialist Hospital, Department of Medicine, Division of Gastroenterology, Dammam, Saudi Arabia, ³University of Calgary, Division of Gastroenterology and Hepatology, Calgary, Alberta, Canada, ⁴King Abdulaziz University, Department of Medicine, Rabigh, Saudi Arabia, ⁵Robarts Clinical Trials, Inc., London, Ontario, Canada, ⁶Western University, Department of Epidemiology and Biostatistics, London, Ontario, Canada

¹Royal Bournemouth Hospital, Gastroenterology, Bournemouth, UK

¹Complejo Hospitalario de Navarra, Gastroenterology and Hepatology, Pamplona, Spain

¹Chaim Sheba Medical Center, Gastroenterology, Tel Hashomer, Israel, ²Tel Aviv University, Sackler Faculty of Medicine, Tel Aviv, Israel

¹Yokohama City University Medical Center, Inflammatory Bowel Disease Center, Yokohama, Japan, ²Kannai Suzuki Clinic, Yokohama, Japan, ³Yokohama City University Graduate School of Medicine, Department of Gastroenterology, Yokohama, Japan

¹NIHR Nottingham Biomedical Research Centre, Nottingham University Hospitals NHS Trust and The University of Nottingham, Nottingham, UK, ²Nottingham Digestive Diseases Centre, The University of Nottingham, Nottingham, UK, ³University Hospitals of Derby and Burton NHS Foundation Trust, Royal Derby Hospital, Derby, UK, ⁴Sherwood Forest Hospitals NHS Foundation Trust, Kings Mill Hospital, Nottingham, UK, ⁵University Hospitals of Leicester NHS Trust, Leicester General Hospital, Leicester, UK, ⁶Chesterfield Royal Hospital NHS Foundation Trust, Chesterfield, UK, ⁷United Lincolnshire Hospitals NHS Trust, Lincoln County Hospital, Lincoln, UK, ⁸Kettering General Hospital NHS Foundation Trust, Kettering, UK, ⁹Takeda UK Ltd., High Wycombe, UK

¹Division of Gastroenterology and Hepatology, Renji Hospital, School of Medicine, Shanghai Jiao Tong University; Shanghai Institute of Digestive Disease; Shanghai Inflammatory Bowel Disease Research Center, Shanghai, China, ²Department of Gastroenterology, Xijing Hospital, Air Force Military Medical University, Xi'an, China, ³Department of Gastroenterology, Peking Union Medical College Hospital, Peking Union Medical College, Beijing, China

¹Tohoku University Graduate School of Medicine, Division of Gastroenterology, Sendai, Japan, ²Tohoku University, Health Administration Center, Center for the Advancement of Higher Education, Sendai, Japan