¹Human Nutrition, School of Medicine, Dentistry and Nursing, College of Medical, Veterinary and Life Sciences, University of Glasgow, Glasgow, UK, ²Department of Paediatric Gastroenterology, Hepatology and Nutrition, Royal Hospital for Children, Glasgow, UK, ³School of Engineering, University of Glasgow, Glasgow, UK, ⁴Department of Gastroenterology, Glasgow Royal Infirmary, Glasgow, UK, ⁵Institute of Infection, Immunity and Inflammation, College of Medical, Veterinary and Life Sciences, University of Glasgow, Glasgow, UK

¹Univeristy of Calgary, Inflammatory Bowel Disease Unit, Calgary, Canada, ²University of Calgary, Community Health Sciences, Calgary, Canada, ³Univeristy of Calgary, Pediatric Gastroenterology, Calgary, Canada, ⁴University of British Columbia, Inflammatory Bowel Disease Unit, Vancouver, Canada

¹University Hospital Zurich, Department of Gastroenterology and Hepatology, Zurich, Switzerland, ²University of Lausanne, Institute of Social and Preventive Medicine, Lausanne, Switzerland, ³University Hospital Bern, Department of Visceral Surgery and Medicine, Bern, Switzerland

¹Samsung Medical Center, Department of Medicine, Seoul, South Korea

¹Clinical Center of Montenegro, Podgorica, Montenegro, ²Ars Medica, Podgorica, Montenegro, ³Faculty of Medicine, University of Montenegro, Podgorica, Montenegro

¹McMaster University, Department of Medicine (Division of Gastroenterology) and Farncombe Family Digestive Health Research Institute, Hamilton, ON, Canada

¹Tillotts Pharma AG, Rheinfelden, Switzerland

¹Cleveland Clinic Foundation, Colorectal Surgery, Cleveland, USA, ²Cleveland Clinic Foundation, Department of Quantitative Health Sciences, Lerner Research Institute, Cleveland, USA

¹University of Szeged, First Department of Medicine, Szeged, Hungary

¹Evangelismos-Ophthalmiatreion Athinon-Polykliniki Hospital, Gastroenterology, Athens, Greece, ²University Hospital of Alexandroupoli, Democritus University of Thrace, 2nd Department of Internal Medicine, Alexandroupoli, Greece, ³University Hospital of Ioannina, Gastroenterology, Ioannina, Greece, ⁴University of Crete, Medical School, Gastroenterology, Heraklion, Greece, ⁵General Hospital of Nikea and Piraeus, Agios Panteleimon – Agia Varvara., Gastroenterology, Nicea, Greece, ⁶Venizeleio Pananeio General Hospital of Heraklion, Gastroenterology, Heraklion, Greece, ⁷University Hospital of Patras, Medical School, Gastroenterology, Patras, Greece, ⁸Alexandra General Hospital of Athens, Gastroenterology, Athens, Greece, ⁹Democritus University of Thrace, Digestive System Endoscopy Unit, Alexandroupoli, Greece, ¹⁰424 Military General Hospital, Gastroenterology and Hepatology, Thessaloniki, Greece, ¹¹Second Department of Internal Medicine - Propaedeutic, Research Institute and Diabetes Center, Department of Internal Medicine, Medical School, National and Kapodistrian University of Athens, Hepatogastroenterology Unit, Athens, Greece, ¹²Evangelismos Hospital, Gastroenterology, Athens, Greece, ¹³General Hospital of Nikea and Piraeus, Agios Panteleimon – Agia Varvara, Gastroenterology, Nicea, Greece, ¹⁴Merck Sharp and Dohme Pharmaceutical, Industrial and Commercial S.A, Athens, Greece

¹Sapporo Kosei General Hospital, IBD Center, Sapporo, Japan

¹GB Pant Institute of Postgraduate Medical Education and Research, Gastroenterology, New Delhi, India

¹Asahikawa Medical University, Department of Medicine, Asahikawa, Japan, ²Asahikawa Kosei General Hospital, Asahikawa, Japan, ³Asahikawa City Hospital, Asahikawa, Japan

¹Aberdeen Royal Infirmary, NHS Grampian, Aberdeen, UK, ²University of Aberdeen, Aberdeen, UK

¹The Royal London Hospital, Gastroenterology, London, UK, ²University College London Hospital, Gastroenterology, London, UK

¹AOU G. Martino – Messina, Department of Clinical and Experimental Medicine, IBD Unit, University of Messina, Messina, Italy, ²AOU G. Martino – Messina, Department of Clinical and Experimental Medicine, Cardiology Unit, University of Messina, Messina, Italy, ³AOU G. Martino - Messina, Department of Clinical and Experimental Medicine, Laboratory Medicine Unit, University of Messina, Messina, Italy

¹Lyon-Sud Hospital, Gastroenterology, Pierre Bénite, France, ²CHU Saint-Etienne, Gastroenterology, Saint-Etienne, France, ³CHU Nancy, Gastroenterology, Nancy, France, ⁴CHU Grenoble, Gastroenterology, Grenoble, France

¹University of Chicago Medicine, Inflammatory Bowel Disease Center, Chicago, IL, USA, ²University of Oxford, Translational Gastroenterology Unit, Nuffield Department of Experimental Medicine, Oxford, UK, ³Houston Methodist – Weill Cornell, Division of Gastroenterology and Hepatology, Houston, TX, USA, ⁴Pfizer Inc., Collegeville, PA, USA, ⁵Medical University of Vienna, Vienna, Austria

¹Cleveland Clinic Foundation, Colorectal Surgery, Cleveland, USA, ²Cleveland Clinic Foundation, Department of Quantitative Health Sciences, Lerner Research Institute, Cleveland, USA

¹St. Paul's Hospital, Vancouver, Canada, ²Evangelismos Hospital, Athens, Greece, ³IBD Center, Mount Sinai Hospital, Toronto, Canada, ⁴Evidera, London, UK, ⁵Evidera, California, USA, ⁶Takeda USA Inc., Chicago, USA, ⁷Takeda SA Inc., Athens, Greece, ⁸Takeda Canada Inc., Toronto, Canada, ⁹Takeda Pharmaceuticals International, Deerfield, USA, ¹⁰Takeda International - UK Branch, London, UK, ¹¹Medical College of Wisconsin, Milwaukee, USA