¹Mauriziano Hospital, Gastroenterology Unit, Torino, Italy, ²Istituto Cinico Locorotondo, Gastroenterology and Endoscopy, Palermo, Italy, ³Mauriziano Hospital, Surgery, Turin, Italy, ⁴ASL CN1 Savigliano Hospital, Surgery, Savigliano, Italy

¹Yokkaichi Hazu Medical Centre, IBD Centre, Yokkaichi, Japan, ²Hamamatsu South Hospital, Center for Gastroenterology and Inflammatory Bowel Disease Research, Hamamastu, Japan, ³Hamamatsu University School of Medicine, First Department of Medicine, Hamamatsu, Japan, ⁴Hamamatsu University School of Medicine, Department of Endoscopic and Photodynamic Medicine, Hamamatsu, Japan

¹Hospital Beatriz Ângelo, Loures, Portugal, ²Instituto Gulbenkian de Ciência, Lisboa, Portugal

¹University of Palermo, Gastroenterology Section, DiBiMis, Palermo, Italy, ²University of Palermo, Internal Medicine and Cardioangiology, DiBiMis, Palermo, Italy, ³University of Palermo - Italy, Gastroenterology Section, DiBiMis, Palermo, Italy

¹Queen Elizabeth II Jubilee Hospital, Gastroenterology, Brisbane, Australia, ²The University Of Queensland, Faculty of Medicine, Brisbane, Australia, ³James Cook University, College of Medicine and Dentistry, Townsville, Australia, ⁴Mater Hospital Brisbane, Gastroenterology, Brisbane, Australia, ⁵Concord Repatriation General Hospital,, Sydney, Australia, ⁶University of New South Wales, Faculty of Medicine, Sydney, Australia, ⁷Macquarie University, Faculty of Medicine and Health Sciences, Sydney, Australia, ⁸Liverpool Hospital, Gastroenterology, Sydney, Australia, ⁹Eastern Health, Gastroenterology, Melbourne, Australia, ¹⁰Monash University, Faculty of Medicine, Nursing and Health Sciences, Melbourne, Australia, ¹¹Fiona Stanley Hospital, Gastroenterology, Perth, Australia, ¹²University of Western Australia,, Faculty of Health and Medical Sciences, Perth, Australia, ¹³St Vincent’s Hospital, Gastroenterology, Melbourne, Australia, ¹⁴University of Melbourne, Faculty of Medicine, Dentistry and Health Sciences, Melbourne, Australia, ¹⁵The Alfred, Gastroenterology, Melbourne, Australia, ¹⁶Royal Adelaide Hospital, Gastroenterology, Adelaide, Australia, ¹⁷University of Adelaide, Faculty of Health and Medical Sciences, Adelaide, Australia, ¹⁸Christchurch Hospital, Gastroenterology, Christchurch, New Zealand, ¹⁹University of Otago, Department of Medicine, Christchurch, New Zealand, ²⁰St Vincent’s Hospital, Gastroenterology, Sydney, Australia, ²¹QIMR Berghofer, Brisbane, Australia, ²²Mater Research Institute - UQ, Brisbane, Australia

¹Tan Tock Seng Hospital, Gastroenterology and Hepatology, Singapore, Singapore

¹Countess of Chester Hospital, Chester, UK

¹Hospital Universitario de Canarias, Gastroenterology, Santa Cruz de Tenerife, Spain, ²Hospital Universitario La Princesa. IIS-IP, CIBEREHD, Gastroenterology, Madrid, Spain, ³Hospital Universitario La Fe, Gastroenterology, Valencia, Spain, ⁴Hospital Universitario de Canarias, Statistics, Santa Cruz de Tenerife, Spain

¹Hutt Valley Hospital, Gastroenterology Department, Lower Hutt, New Zealand, ²University of Otago, Department of Medicine, Wellington, New Zealand

¹Takeda Development Center Americas Inc., Cambridge, USA, ²Metrum Research Group, Tariffville, USA, ³Aucuba Sciences, Ltd.,, Canterbury, Kent, UK, ⁴Robarts Clinical Trials, Robarts Research Institute, University of Western Ontario, London, ON, Canada, ⁵University of California San Diego, La Jolla, USA, ⁶Amsterdam University Medical Centers, Amsterdam, The Netherlands

¹University Hospitals Leuven, Catholic University of Leuven, Department of Gastroenterology and Hepatology, Leuven, Belgium, ²Imelda General Hospital, Department of Gastroenterology, Bonheiden, Belgium, ³Imelda General Hospital, Department of Laboratory Medicine, Bonheiden, Belgium, ⁴Imelda General Hospital, Central Hospital Pharmacy, Bonheiden, Belgium

¹Medical University of Vienna, Vienna, Austria, ²Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA, ³St Vincent's University Hospital, University College Dublin, Dublin, Ireland, ⁴Pfizer Inc., Collegeville, PA, USA, ⁵Pfizer Inc., New York, NY, USA

¹University Hospital Münster, Department of Medicine B, Gastroenterology and Hepatology, Münster, Germany, ²Cleveland Clinic Foundation, Department of Quantitative Health Sciences, Lerner Research Institute, Cleveland, USA, ³University of Alberta, Division of Gastroenterology, Edmonton, Canada, ⁴Osaka City University Graduate School of Medicine, Department of Gastroenterology, Osaka, Japan, ⁵Fukuoka University Chikushi Hospital, Chikushino, Inflammatory Bowel Disease Center, Fukuoka, Japan, ⁶Fujita Health University School of Medicine, Department of Gastroenterology, Toyoake city, Japan, ⁷Cleveland Clinic Foundation, Department of Gastroenterology, Hepatology and Nutrition, Digestive Disease Institute, Cleveland, USA, ⁸Cleveland Clinic Foundation, Department of Pathobiology, Lerner Research Institute, Cleveland, USA

¹McGill University Health Centre, Department of Gastroenterology, Montreal, Canada, ²Mayo Clinic, Division of Gastroenterology and Hepatology, Rochester, USA, ³Prometheus Laboratories Inc., San Diego, USA, ⁴University of California San Diego, Division of Gastroenterology, La Jolla, USA

¹University of Szeged, First Department of Internal Medicine, Szeged, Hungary, ²Military Hospital - State Health Centre, Budapest, Hungary, ³Semmelweis University, Second Department of Internal Medicine, Budapest, Hungary, ⁴University of Debrecen, Department of Gastroenterology, Department of Medicine, Clinical Centre, Debrecen, Hungary, ⁵Péterfi Sándor Utcai Hospital Centre, Budapest, Hungary, ⁶Tolna County Teaching Hospital, Department of Gastroenterology, Szekszárd, Hungary, ⁷Markusovszky Hospital, Department of Medicine and Gastroenterology, Szombathely, Hungary, ⁸University of Debrecen, Institute of Medicine, Department of Gastroenterology, Debrecen, Hungary, ⁹University of Debrecen, Division of Gastroenterology, Department of Internal Medicine, Debrecen, Hungary, ¹⁰Pándy Kálmán Hospital of Békés County, Gyula, Hungary, ¹¹Department of Medicine, Csolnoky F. Province Hospital, Veszprém, Hungary, ¹²Semmelweis University, First Department of Internal Medicine, Budapest, Hungary, ¹³Unversity of Pécs, Division of Gastroenterology, First Department of Medicine, Pécs, Hungary, ¹⁴University of Pécs, Second Department of Internal Medicine, Pécs, Hungary, ¹⁶Semmelweis University, First Deparment of Surgery, Budapest, Hungary, ¹⁷Buda Hospital of the Hospitaller Order of Saint John of God, Budapest, Hungary, ¹⁸University of Pécs, First Department of Internal Medicine, Pécs, Hungary

¹IBD Unit, Villa Sofia-Cervello Hospital, Palermo, Italy, ²Gastroenterology and Endoscopy Unit, ARNAS Civico-Di Cristina-Benfratelli Hospital, Palermo, Italy, ³Department of Gastroenterology, Federico II University, Naples, Italy, ⁴Gastroenterology Unit, San Camillo Forlanini, Rome, Italy, ⁵Department of Gastroenterology, San Filippo Neri Hospital, Rome, Italy, ⁶Department of Gastroenterology, IRCCS, Casa Sollievo della Sofferenza Hospital, San Giovanni Rotondo (FG), Italy, ⁷Department of Gastroenterology, Sapienza University, Rome, Italy, ⁸Department of Gastroenterology, Tor Vergata University, Rome, Italy, ⁹Department of Gastroenterology, Palermo University, Palermo, Italy, ¹⁰Gastroenterology Unit, Villa Sofia-Cervello Hospital, Palermo, Italy, ¹¹Internal Medicine, Villa Sofia-Cervello Hospital, Palermo, Italy

¹St Vincent's Hospital, Gastroenterology, Melbourne, Australia

¹University of California - San Diego, La Jolla, USA, ²Nancy University Hospital, Nancy, France, ³IQVIA, Cambridge, USA, ⁴IQVIA, London, UK, ⁵Takeda Pharmaceuticals International AG, Zurich, Switzerland, ⁶Takeda Pharmaceuticals USA, Inc., Deerfield, USA, ⁷Takeda International – UK Branch, London, UK, ⁸Takeda Pharmaceuticals International, Deerfield, USA, ⁹Western University, London, ON, Canada

¹Shaare Zedek Medical Center, The Juliet Keidan Institute of Paediatric Gastroenterology and Nutrition, Jerusalem, Israel, ²Children's Hospital University Medical Centre, Department of Gastroenterology, Hepatology and Nutrition, Ljubljana, Slovenia, ³Assaf Harofeh Medical Center, The Kamila Gonczarowski Institute for Gastroenterology and Liver Diseases, Beer Yaakov, Israel, ⁴Schneider Children's Medical Center, The Institute of Gastroenterology, Nutrition and Liver Diseases, Petah Tikva, Israel, ⁵Our Lady's Children's Hospital, Crumlin, National Centre for Paediatric Gastroenterology, Dublin, Ireland, ⁶Tel Aviv Sourasky Medical Center, ‘Dana-Dwek’ Children's Hospital, Pediatric Gastroenterology, Liver and Nutrition Unit, Tel Aviv, Israel, ⁷Wolfson Medical Center, Pediatric Gastroenterology and Nutrition Unit, Holon, Israel, ⁸Cohen Children's Medical Center of NY, Division of Pediatric Gastroenterology and Nutrition, New York, USA, ⁹Hvidovre University Hospital, Department of Paediatrics, Hvidovre, Denmark

¹Bordeaux University Hospital, Gastroenterology and nutrition, Bordeaux, France