¹Claude Huriez Hospital, Lille, France, ²Henri Mondor Hospital, Creteil, France, ³Saint Louis Hospital, Paris, France, ⁴Saint Antoine Hospital, Paris, France, ⁵Haut-Lévêque Hospital, Pessac, France, ⁶CHU Sart Tilman, Liège, Belgium, ⁷Rangueil Hospital, Toulouse, France, ⁸Hôpital de l'Archet, Nice, France, ⁹Hôpital Nord, Amiens, France, ¹⁰Robert Debré Hospital, Reims, France, ¹¹Saint Eloi Hospital, Montpellier, France, ¹²CHI Le Raincy-Montfermeil, Montfermeil, France, ¹³Hôpital Nord, Marseille, France, ¹⁴Louis Mourier Hospital, Colombes, France, ¹⁵Louis Pasteur Hospital, Colmar, France, ¹⁶Hôpital Côte de Nacre, Caen, France, ¹⁷CHU Angers, Angers, France, ¹⁸Hôpital de Brabois, Vandoeuvre-les-Nancy, France

¹Academic Medical Center (AMC), Department of Surgery, Amsterdam, The Netherlands, ²Academic Medical Center (AMC), Tytgat Institute for Liver and Intestinal Research, Amsterdam, The Netherlands, ³Academic Medical Center (AMC), Department of Gastroenterology and Hepatology, Amsterdam, The Netherlands, ⁴Currently GlaxoSmithKline, Medicines Research Center, Stevenage, UK

¹IBD Clinical and Research Centre, Iscare, Prague, Czech Republic, ²Department of Internal Medicine, University Hospital Plzen, Plzen, Czech Republic, ³Department of Internal Medicine, Thomayer University Hospital, Prague, Czech Republic, ⁴Department of Paediatrics, 2nd Faculty of Medicine, Charles University in Prague and Motol University Hospital, Prague, Czech Republic, ⁵Department of Paediatric Surgery, 2nd Faculty of Medicine, Charles University in Prague and Motol University Hospital, Prague, Czech Republic, ⁶General Paediatrician, Prague, Czech Republic

¹Oxford University Hospital, Oxford, UK, ²Icahn School of Medicine at Mount Sinai, New York, USA, ³Takeda International - UK Branch, London, UK, ⁴Takeda Development Center Americas, Inc., Cambridge, USA, ⁵University of Nottingham, Nottingham, UK

Başkent University Medical Faculty, Department of Gastroenterology, Ankara, Turkey

¹Tallaght Hospital, Gastroenterology, Dublin, Ireland, ²Trinity College Dublin, Dublin, Ireland, ³St James's Hospital, Dublin, Ireland

¹Maastricht University Medical Center (MUMC), Maastricht, The Netherlands, ²Leiden University Medical Center (LUMC), Leiden, The Netherlands, ³Mundipharma Pharmaceuticals B.V., Leusden, The Netherlands, ⁴University Medical Center Groningen, Groningen, The Netherlands

¹Chelsea and Westminster Hospital NHS Foundation Trust, London, UK, ²The Royal Liverpool University Hospital, Liverpool, UK

¹Nottingham Digestive Diseases Centre, Queens Medical Center Campus, Nottingham University Hospitals NHS Trust, Nottingham, UK, ²Pharmacy Department, Queens Medical Center Campus, Nottingham University Hospitals NHS Trust, Nottingham, UK, ³National Institute of Health Research Biomedical Research Centre in Gastrointestinal and Liver Diseases at Nottingham University Hospitals and the University of Nottingham, Nottingham, UK

Osaka City University Graduate School of Medicine, Gastroenterology, Osaka, Japan

¹CHUV - Centre Hospitalier Universitaire Vaudois, Department of Gastroenterology, Lausanne, Switzerland, ²Institute of Social and Preventive Medicine, Bern, Switzerland

¹St James's Hospital, Department of Gastroenterology, Dublin, Ireland, ²AMNCH, Tallaght, Dublin 24, Department of Gastroenterology, Dublin, Ireland, ³Trinity College Dublin, Trinity Academic Gastroenterology Group, Dublin, Ireland, ⁴Trinity College Dublin, School of Medicine, Dublin, Ireland

University of Alberta, Gastroenterology, Edmonton, Canada

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

¹Helsinki University, Helsinki, Finland, ²Helsinki University Hospital, Abdominal Center, Helsinki, Finland, ³Helsinki University Hospital, Clinic of Gastroenterolgy, Helsinki, Finland

London Health Sciences Centre,/University of Western Ontario, Division of Gastroenterology, Department of Medicine, London, Canada

¹APHP, Le Kremlin Bicetre, France, ²Saint Antoine, Paris, France, ³Henri Mondor, 94, Henri Mondor, France, ⁴Pitié-Salpétrière, Paris, France, ⁵Paul Brousse, Villejuif, France

LUMC, Gastroenterology-Hepatology, Leiden, The Netherlands

¹Coreva Scientific, Freiburg im Breisgau, Germany, ²Medtronic Gastrointestinal and Hepatology, Duluth, USA, ³Illinois Gastroenterology Group, Elgin, USA

¹Chung-Ang University College of Medicine, Department of internal medicine, Seoul, South Korea, ²Yonsei University College of Medicine, Department of Internal Medicine and Institute of Gastroenterology, Seoul, South Korea, ³Seoul National University College of Medicine, Department of Internal Medicine and Liver Research Institute, Seoul, South Korea, ⁴Kyung Hee University Hospital, Department of Gastroenterology, Seoul, South Korea, ⁵The Catholic University of Korea St. Vincent's Hospital, Department of Gastroenterology, Suwon, South Korea, ⁶SMG-SNU Boramae Medical Center, Department of Gastroenterology, Seoul, South Korea, ⁷Ewha Womans University Mokdong Hospital, Department of Gastroenterology, Seoul, South Korea, ⁸Chosun University College of Medicine, Department of Internal Medicine, Gwagju, South Korea, ⁹The Catholic University of Korea Daejeon St. Mary’s Hospital, Department of Gastroenterology, Daejeon, South Korea, ¹⁰Ajou University School of Medicine, Department of Gastroenterology, Suwon, South Korea, ¹¹Korea University Anam Hospital, Department of Gastroenterology, Seoul, South Korea, ¹²Inje University Seoul Paik Hospital, Department of Gastroenterology, Seoul, South Korea, ¹³Inje University Haeundae Paik Hospital, Department of Gastroenterology, Busan, South Korea, ¹⁴Chonnam National University Hospital, Department of Gastroenterology, Gwagju, South Korea, ¹⁵Kangbuk Samsung Hospital, Sungkyunkwan University, Department of Internal Medicine, Seoul, South Korea, ¹⁶Inha University Hospital, Department of Gastroenterology, Incheon, South Korea, ¹⁷Kyungpook National University School of Medicine, Department of Internal Medicine, Daegu, South Korea, ¹⁸Abbvie Ltd., Seoul, South Korea, ¹⁹AbbVie Pte. Ltd., Singapore City, Singapore