¹University of Bergen, Department of Clinical Medicine, Bergen, Norway, ²Haukeland University Hospital, National Centre for Ultrasound in Gastroenterology, Bergen, Norway

¹Icahn School of Medicine at Mount Sinai, Department of Medicine, New York, USA, ²Icahn School of Medicine at Mount Sinai, Division of Gastroenterology, New York, USA, ³Emory University School of Medicine, Division of Digestive Diseases, Atlanta, USA

¹NIHR Nottingham Digestive Diseases Biomedical Research Centre, Gastroenterology, Nottingham, UK, ²KU Leuven, Chronic Diseases- Metabolism and Ageing- TARGID-IBD Unit, Leuven, Belgium, ³University Hospitals Leuven, Gastroenterology and Hepatology, Leuven, Belgium, ⁴Jagiellonian University Medical College, Department of Paediatrics- Gastroenterology and Nutrition, Krakow, Poland, ⁵Amstedam UMC- VU University Medical Center, Department of Gastroenterology and Hepatology- AG&M Research Institute, Amsterdam, The Netherlands, ⁶University of Ioannina School of Health Sciences, Division of Gastroenterology- Department of Internal Medicine- Faculty of Medicine, Ioannina, Greece, ⁷Venizeleio General Hospital, Department of Gastroenterology, Heraklion, Greece, ⁸Sheba Medical Center- Tel Hashomer, Department of Gastroenterology, Tel Hashomer, Israel, ⁹Tel-Aviv University, Sackler School of Medicine, Tel-Aviv, Israel, ¹⁰Orebro University, Department of Gastroenterology- Faculty of Medicine and Health, Orebro, Sweden, ¹¹University of Szeged, First Department of Medicine, Szeged, Hungary, ¹²Mater Dei Hospital, Department of Medicine- Division of Gastroenterology, Msida, Malta

¹Western University, Department of Medicine and Department of Epidemiology and Biostatistics, London, Canada, ²AbbVie Inc., Health Economics and Outcomes Research, North Chicago, USA, ³AbbVie Inc., Immunology, North Chicago, USA, ⁴AbbVie Inc., Clinical Development, North Chicago, USA, ⁵Adelphi Values, Patient Centered Outcomes, Boston, USA, ⁶Icahn School of Medicine at Mount Sinai, Division of Hematology and Oncology- Department of Medicine and Department of Pathology, New York, USA

Leiden University Medical Centre, Gastroenterology, Leiden, The Netherlands

¹University of Birmingham, Institute of Translational Medicine, Birmingham, UK, ²University of Milan, Gastroenterology, Milan, Italy, ³University of Birmingham, NIHR Biomedical Research Centre, Birmingham, UK, ⁴University of Cologne, Institute for Biological Physics, Cologne, Germany, ⁵University Hospitals Birmingham NHS Foundation Trust, Department of Histopathology, Birmingham, UK, ⁶University of Calgary, IBD Unit, Calgary, Canada

¹Soonchunhyang University College of Medicine, Digestive Disease Center- Institute for Digestive Research, Seoul, Korea- Republic Of, ²Soonchunhyang University College of Medicine, Department of biostatistics, Seoul, Korea- Republic Of

The Chinese University of Hong Kong- Prince of Wales Hospital, Department of Medicine and Therapeutics, Hong Kong, Hong Kong- China

¹Emma Children’s Hospital- Amsterdam UMC- University of Amsterdam, Pediatric Gastroenterology, Amsterdam, The Netherlands, ²Amsterdam UMC- University of Amsterdam, Department of Experimental Immunology, Amsterdam, The Netherlands, ³Amsterdam UMC- University of Amsterdam, Gastroenterology and Hepatology, Amsterdam, The Netherlands

¹Complejo Hospitalario Universitario de Ferrol, Gastroenterology, Ferrol, Spain, ²Complejo Asistencial Universitario de León, Gastroenterology, León, Spain, ³Hospital Universitario Puerta de Hierro, Gastroenterology, Madrid, Spain, ⁴Hospital Universitario Fundación Alcorcón, Gastroenterology, Madrid, Spain, ⁵Hospital Universitario Infanta Cristina, Gastroenterology, Madrid, Spain, ⁶Hospital Universitario y Politécnico de La Fe, Gastroenterology, Valencia, Spain, ⁷Hospital Universitario Marqués de Valdecilla, Gastroenterology, Santander, Spain, ⁸Hospital Universitario Infanta Sofía, Gastroenterology, Madrid, Spain

¹ISCARE I.V.F a.s., Clinical and Research Centre for IBD, Prague, Czech Republic, ²1st Faculty of Medicine- Charles University in Prague, Institute of Pharmacology, Prague, Czech Republic, ³1st Faculty of Medicine and Central Military Hospital, Department of Internal Medicine, Prague, Czech Republic, ⁴GENNET, Laboratory of Immunology, Prague, Czech Republic, ⁵Patient Organisation, Pacienti IBD z.s., Prague, Czech Republic

University Of Chicago Medicine, Inflammatory Bowel Disease Center, Chicago, USA

¹Hadassah-Hebrew University Medical Center, Department of Obstetrics and Gynecology, Jerusalem, Israel, ²Shaare Zedek Medical Center, Department of Obstetrics and Gynecology, Jerusalem, Israel

¹The Royal Melbourne Hospital, Department of Colorectal Medicine and Genetics, Melbourne, Australia, ²Australian Catholic University, Department of Biostatistics, Melbourne, Australia, ³St Vincent’s Hospital, Department of Gastroenterology, Melbourne, Australia, ⁴The Royal Melbourne Hospital, Department of Gastroenterology, Melbourne, Australia, ⁵Epworth Healthcare, Department of Gastroenterology, Melbourne, Australia, ⁶Western Health, Department of Gastroenterology, Melbourne, Australia

¹University of Miami Miller School of Medicine, Gastroenterology Division, Miami, United States, ²Arena Pharmaceuticals- Inc., Clinical Development, San Diego, United States, ³Health Union- LLC, Insights Division, Philadelphia, United States, ⁴Health Union- LLC, Research and Analytics Division, Philadelphia, United States, ⁵AMF Consulting, Statistics and Data Management, Los Angeles, United States, ⁶Arena Pharmaceuticals- Inc., Health economic and outcomes research, San Diego, United States

¹University of Michigan, Department of Medicine- Division of Gastroenterology and Hepatology, Ann Arbor, United States, ²University of Michigan, Michigan Integrated Center for Health Analytics and Medical Prediction MiCHAMP, Ann Arbor, United States, ³University of Michigan, Morphomic Analysis Program, Ann Arbor, United States, ⁴University of Michigan, Department of Surgery, Ann Arbor, United States, ⁵VA Ann Arbor Health Care System, VA Center for Clinical Management Research, Ann Arbor, United States, ⁶University of Michigan, Department of Radiology, Ann Arbor, United States

¹Hospital de Galdakao, Gastroenterology, Bilbao, Spain, ²Hospital Universitario de Cruces, Gastroenterology, Barakaldo, Spain, ³Hospital Universitario Araba, Gastroenterology, Vitoria, Spain, ⁴Hospital Universitario Donostia, Gastroenterology, Donostia, Spain, ⁵Hospital de Mendaro, Gastroenterology, Mendaro, Spain, ⁶Hospital de San Eloy, Gastroenterology, Barakaldo, Spain, ⁷Onkologikoa, Gastroenterology, Donostia, Spain, ⁸Hospital de Mondragón-Alto Deba, Gastroenterology, Mondragón, Spain, ⁹Hospital Universitario de Basurto, Gastroenterology, Bilbao, Spain, ¹⁰Hospital de Zumárraga, Gastroenterology, Zumárraga, Spain, ¹¹Hospital Bidasoa, Gastroenterology, Irún, Spain, ¹²Clínica Universidad de Navarra, Gastroenterology, Pamplona, Spain, ¹³Hospital Clínico Universitario de Santiago de Compostela, Gastroenterology, Santiago de Compostela, Spain

Sheba Medical Center, Gastroenterology, Ramat Gan, Israel

Uneversity Teaching Hospital Ibn Sina- Mohammed V University, Department of Medecin C, Rabat, Morocco

University of Palermo, Gastroenterology and Hepatology Section- PROMISE, Palermo, Italy