¹MSD, Luzern, Switzerland, ²Clinique Jules Verne, Paris, France, ³Paracelsus Private Medical University, Salzburg, Austria, ⁴Gastroenterologie, Remscheid, Germany, ⁵Charité Universitätsmedizin, Berlin, Germany, ⁶KU Leuven, Leuven, Belgium, ⁷MSD Italy, Rome, Italy

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

¹Nova Scotia Health Authority, Halifax, Canada, ²Dalhousie University, Halifax, Canada, ³University of Alberta, Edmonton, Canada

¹Kitasato University Kitasato Institute Hospital, Center for Advanced IBD Research and Treatment, Tokyo, Japan, ²Kitasato University Kitasato Institute Hospital, Department of Clinical Laboratory, Tokyo, Japan, ³Kitasato University Kitasato Institute Hospital, Department of Gastroenterology and Hepatology, Tokyo, Japan

¹S. Giovanni Addolorata Hospital, Gastroenterology and Digestive Endoscopy, Rome, Italy, ²S. Giovanni Addolorata Hospital, Anatomy and Pathological Histology, Rome, Italy

¹Ulm University Hospital, Department of Internal Medicine I, Ulm, Germany, ²Ulm University Hospital, Department of Psychosomatic Medicine and Psychotherapy, Ulm, Germany, ³Krankenhaus Blaubeuren, Innere Medizin, Blaubeuren, Germany, ⁴Krankenhaus Biberbach, Innere Medizin, Biberach, Germany

¹Venizeleio General Hospital, Gastroenterology, Heraklion, Greece, ²Venizeleio General Hospital, Thoracic Medicine, Heraklion, Greece

¹Sapienza University of Rome, Department of Pediatrics, Pediatric Gastroenterology Unit, Rome, Italy

¹St Mark's Hospital, London, UK, ²Imperial College, London, UK

¹Fundeni Clinical Institute, Gastroenterology, Bucharest, Romania

¹IBD Clinic, Department of Gastroenterology, Instituto Nacional de Ciencias Medicas y Nutricion, Gastroenterology, Mexico, Mexico, ²Instituto Nacional de Ciencias Medicas y Nutricion, Endoscopy, Mexico, Mexico, ³Instituto Nacional de Ciencias Medicas y Nutricion, Pathology, Mexico, Mexico

¹Oslo University Hospital, Department of Gastroenterology, Oslo, Norway, ²University of Oslo, Faculty of Medicine, Oslo, Norway, ³Akershus University Hospital, Department of Gastroenterology, Oslo, Norway, ⁴Telemark Hospital Trust, Department of Gastroenterology, Skien, Norway, ⁵Vestfold Hospital Trust, Department of Research and Innovation, Tønsberg, Norway, ⁶Sørlandet Hospital Trust, Department of Gastroenterology, Arendal, Norway

¹GoodGut SL, Girona, Spain, ²Universitat de Girona, Microbiology, Girona, Spain, ³Institut de Investigació Biomèdica de Girona, Girona, Spain, ⁴Hospital Universitari Dr. Josep Trueta, Girona, Spain, ⁵Hospital Universitari de Bellvitge, Hospitalet de Llobregat, Spain, ⁶Hospital Universitari Germans Trias I Pujol, CIBEREHD, Badalona, Spain, ⁷Hospital de Santa Caterina, Salt, Spain, ⁸Centro Médico Teknon, Barcelona, Spain

¹Mount Sinai, New York, USA, ²Pfizer Inc., New York, USA, ³Pfizer Inc., Patient and Health Impact, New York, USA, ⁴Pfizer Inc., Groton, USA, ⁵Pfizer Inc., Collegeville, USA, ⁶Fondazione Policlinico Gemelli IRCCS - Università Cattolica del Sacro Cuore, Rome, Italy

¹KU Leuven, TARGID, Leuven, Belgium, ²Rega Institute for Medical Research, Microbiology and Immunology, Leuven, Belgium, ³University hospitals Leuven, Gastroenterology and Hepatology, Leuven, Belgium

¹University of Birmingham, Institute of Immunology and Immunotherapy, Birmingham, UK, ²University of Calgary, IBD Unit, Calgary, Canada, ³University of Birmingham, Institute of Translational Medicine, Birmingham, UK, ⁴National Institute for Health Research (NIHR) Birmingham Biomedical Research Centre, Birmingham, UK, ⁵University of Calgary, Department of Pathology, Calgary, Canada, ⁶University of Calgary, Research Unit, Calgary, Canada, ⁷University of Calgary, IBD Unit, Birmingham, UK, ⁸HSK Hospital, Division of Gastroenterology, Wiesbaden, Germany

¹Fondazione Policlinico Gemelli IRCCS – Università Cattolica del Sacro Cuore, Rome, Italy, ²Pfizer Inc., Rome, Italy, ³Pfizer Inc., New York, USA, ⁴Adelphi Real World, Macclesfield, UK, ⁵Pfizer Inc., Collegeville, USA, ⁶Pfizer Inc., Groton, USA, ⁸Pfizer Inc., Patient and Health Impact, New York, USA

¹Fondazione Policlinico A. Gemelli IRCCS, Internal Medicine and Gastroenterology, Rome, Italy, ²Catholic University, Institute of Public Health, Rome, Italy, ³Fondazione Policlinico A. Gemelli IRCCS, Angiology, Rome, Italy, ⁴Fondazione Policlinico A. Gemelli IRCCS, Presidio Columbus, Rome, Italy

¹Calpro AS, Lysaker, Norway

¹Istituto Clinico Humanitas, Department of Gastroenterology, Milan, Italy, ²University Hospital CHU of Liège, Liège, Belgium, ³Mayo Clinic College of Medicine, Rochester, USA, ⁴AbbVie Inc., North Chicago, USA, ⁵University of Birmingham, Institute of Immunology and Immunotherapy, NIHR Biomedical Research Centre, Institute of Translational Medicine, Birmingham, UK