Janssen Research & Development, LLC, Spring House, USA

¹Sheba Medical Center, Tel Hashomer, Israel, ²CCHMC, Cincinnati, USA, ³Cincinnati Children’s Hospital Medical Center, Cincinnati, OH, USA, ⁴Connecticut Children’s Medical Center, Hartford, USA, ⁵Emory University, Atlanta, USA

¹Humanitas University, Biomedical Science, Milan, Italy, ²San Raffaele Scientific Institute, Division of Neuroscience, Milan, Italy

¹Blizard Institute, Immunobiology, London, UK, ²Royal London Hospital, Gastroenterology, London, UK

¹KULeuven, Lab of Clinical Immunology, Leuven, Belgium, ²University Hospital Gasthuisberg, Department of Gastroenterology, Leuven, Belgium, ³KU Leuven, TARGID - Department of Chronic Diseases, Metabolism and Aging, Leuven, Belgium

¹North Zealand University Hospital, Department of Gastroenterology, Frederikssund, Denmark, ²Viborg Regional Hospital, Medical Department, Viborg, Denmark, ³Hospital of Southern Jutland, Medical Department, Aabenraa, Denmark, ⁴University Hospital Center Zagreb, University of Zagreb School of Medicine, Division of Gastroenterology and Hepatology, Zagreb, Croatia, ⁵Semmelweis University, 1st Department of Medicine, Budapest, Hungary, ⁶Azienda Ospedaliera di Padova, Department of Surgery, Oncology and Gastroenterology, Padova, Italy, ⁷University of Porto, Institute for molecular and cell biology, Porto, Portugal, ⁸Hospital de São João, Department of Gastroenterology, Porto, Portugal, ⁹Oporto Medical School, Institute of Pharmacology and Therapeutics, Porto, Portugal, ¹⁰St Mark's Hospital, Gastroenterology, London, UK, ¹¹Herning Central Hospital, Department of medicine, Herning, Denmark, ¹²Nicosia Private practice, Nicosia Private practice, Nicosia, Cyprus, ¹³Department of Gastroenterology and Digestive Endoscopy, Morgagni Hospital, Forli, Italy, ¹⁴University Hospital, Ioannina, 1st Division of Internal Medicine and Hepato-Gastroenterology Unit, Ioannina, Greece, ¹⁵Aarhus University Hospital, Department of Hepatology and Gastroenterology, Aarhus, Denmark, ¹⁶Amiens University and Hospital, Epimad Registry, Gastroenterology Unit, Amiens, France, ¹⁷Slagelse Hospital, Department of Gastroenterology, Slagelse, Denmark, ¹⁸Faculty of Medicine and Health, Örebro University, Department of Gastronterology, Örebro, Sweden, ¹⁹Moscow Regional Research Clinical Institute, Department of Gastroenterology, Moscow, Russian Federation, ²⁰The National Hospital of the Faroe Islands, Medical department, Tórshavn, Faroe Islands, ²¹State University of Medicine and Pharmacy of the Republic of Moldova, Department of Gastroenterology, Chisinau, Moldova, Republic of, ²²Mater Dei Hospital, Division of Gastroenterology, L-Imsida, Malta, ²³Lithuanian University of Health Sciences, Institute for Digestive Research, Kaunas, Lithuania, ²⁴Tampere University Hospital, Department of Gastroenterology and Alimentary Tract Surgery, Tampere, Finland, ²⁵Charles University, IBD Center ISCARE, Prague, Czech Republic, ²⁶AOU Careggi Regional Referral Center for Inflammatory Bowel Disease, Gastroenterology Department, Florence, Italy, ²⁷University of Medicine ‘Victor Babes’, Clinic of Gastroenterology, Timisoara, Romania, ²⁸Complexo Hospitalario Universitario de Vigo, Gastroenterology Department, Vigo, Spain, ²⁹Tartu University Hospital, Division of Endocrinology and Gastroenterology, Tartu, Estonia, ³⁰Soroka Medical Center and Ben Gurion University of the Negev, Department of Gastroenterology and Hepatology, Beer Sheva, Israel, ³¹Gentofte Hospital, Department of Medical Gastroenterology, Copenhagen, Denmark

¹University Hospitals Leuven, Department of Gastroenterology and Hepatology, Leuven, Belgium, ²KU Leuven, Translational Research in Gastrointestinal Disorders, Department of Chronic Diseases, Metabolism and Ageing, Leuven, Belgium

¹University Hospital Zurich, Division of Gastroenterology and Hepatology, Zurich, Switzerland, ²University of Lausanne, IUMSP, Lausanne, Switzerland, ³Klinik Hirslanden, Department of Gastroenterology, Zurich, Switzerland, ⁴University of Bern, Institute of Social and Preventive Medicine, Bern, Switzerland, ⁵CHUV - Centre Hospitalier Universitaire Vaudois, Department of Gastroenterology, Lausanne, Switzerland, ⁶Center of Gastroenterology and Hepatology, Zurich, Switzerland, ⁷University Hospital Zurich, Gastroenterology and Hepatology, Zurich, Switzerland

¹Erasmus MC, Gastroenterology and Hepatology, Rotterdam, The Netherlands, ²University Medical Center Groningen and University of Groningen, Gastroenterology and Hepatology, Groningen, The Netherlands, ³Academic Medical Center Amsterdam, Gastroenterology and Hepatology, Amsterdam, The Netherlands, ⁴University Hospitals Leuven, KU Leuven, Gastroenterology, Leuven, Belgium, ⁵Franciscus Hospital and Vlietland Hospital, Gastroenterology and Hepatology, Rotterdam, The Netherlands, ⁶Leiden University Medical Center, Gastroenterology and Hepatology, Leiden, The Netherlands, ⁷Toronto General Hospital, Center for Liver Disease, Toronto, Canada

¹University of California San Diego, Division of Gastroenterology, La Jolla, CA, USA, ²Hospital Clínic de Barcelona, IDIBAPS, CIBERehd, Barcelona, Spain, ³Academic Medical Centre, Department of Gastroenterology, Amsterdam, The Netherlands, ⁴Icahn School of Medicine at Mount Sinai, Dr. Henry D. Janowitz Division of Gastroenterology, New York, NY, USA, ⁵Pfizer Inc., Collegeville, PA, USA

¹Northwestern University, Evanston, IL, USA, ²University of Calgary, Calgary, AB, Canada, ³Humanitas Research Hospital, IBD Center, Department of Gastroenterology, Rozzano, Milan, Italy, ⁴Beth Israel Deaconess Medical Center and Harvard Medical School, Department of Medicine and Division of Gastroenterology, Boston, MA, USA, ⁵Medical University of Vienna, Department of Internal Medicine III, Vienna, Austria, ⁶University of Michigan, Ann Arbor, MI, USA, ⁷Pfizer Inc., Collegeville, PA, USA

¹Perelman School of Medicine of the University of Pennsylvania, Division of Gastroenterology, Philadelphia, PA, USA, ²Washington University in Saint Louis, Division of Gastroenterology, Saint Louis, MO, USA, ³University of Zürich, Department of Gastroenterology and Hepatology, Zürich, Switzerland, ⁴Pfizer Inc., Collegeville, PA, USA, ⁵Hospital Clínic de Barcelona, IDIBAPS, CIBERehd, Barcelona, Spain

¹Icahn School of Medicine at Mount Sinai, Dr. Henry D. Janowitz Division of Gastroenterology, New York, NY, USA, ²Beth Israel Deaconess Medical Centre, Division of Gastroenterology, Boston, MA, USA, ³Presidio Columbus Fondazione Policlinico Gemelli Università Cattolica, IBD Unit, Rome, Italy, ⁴McMaster University, Division of Gastroenterology, Department of Medicine, Farncombe Family Digestive Health Research Institute, Hamilton, ON, Canada, ⁵The Royal London Hospital, Barts Health NHS Trust, Department of Gastroenterology, London, UK, ⁶University of California San Diego, Division of Gastroenterology, La Jolla, CA, USA, ⁷Humanitas Research Hospital, IBD Center, Department of Gastroenterology, Rozzano, Milan, Italy, ⁸Pfizer Inc., New York, NY, USA, ⁹Pfizer Inc., Collegeville, PA, USA

¹Western University, Robarts Clinical Trials, London, ON, Canada, ²Icahn School of Medicine at Mount Sinai Hospital, Department of Pediatrics and Medicine, New York, NY, USA, ³Charles University, Prague, Czech Republic, ⁴Pfizer Inc., Collegeville, PA, USA

¹Manchester Royal Infirmary/University of Manchester, Gastroenterology, Manchester, UK, ²University of Greenwich/Barts Heath, School of Nursing/Gastroenterology, London, UK, ³McMasterUniversity, Digestive Diseases, Hamilton, Canada, ⁴Royal Free Hospital, Gastroenterology, London, UK, ⁵Karolinska Institutet Danderyd Hospital, Stockholm Gastro Centre, Stockholm, Sweden, ⁶Hull and East Yorkshire Hospitals, Gastroenterology, Hull, UK, ⁷Coastal Digestive Health, IBD Clinic, Mountain Creek, Australia, ⁸St Thomas' Hospital, Gastroenterology, London, UK, ⁹Gastroenterologische Gemeinschaftspraxis, Gastroenterology, Minden, Germany, ¹⁰Ijsselland Hospital, Department of Surgery, ZC Capelle A/D Ijssel, The Netherlands, ¹¹AZ Delta Roeselare-Menen, Gastroenterology, Roeselare, Belgium, ¹²LUMC, Gastroenterology, Leiden, The Netherlands, ¹³Leiden University Medical Centre, Gastroenterology, Leiden, The Netherlands, ¹⁴Barts and The London NHS Trust, Gastroenterology, London, UK, ¹⁵Gastroenterology and Hepatology Aarhus University, Department of Medicine, Aarhus, Denmark

¹Montpellier University Hospital, Pediatric Gastroenterology and Nutrition, Montpellier, France, ²Lille University Hospital, Epidemiology, Lille, France, ³Toulouse University Hospital, Pediatric Gastroenterology and Nutrition, Toulouse, France, ⁴Amiens University Hospital, Gastroenterology, Amiens, France, ⁵Rouen University Hospital, Gastroenterology, Rouen, France, ⁶Armand Trousseau University Hospital, Pediatric Gastroenterology and Nutrition, Paris, France, ⁷Lille University Hospital, Gastroenterology, Lille, France, ⁸Lille University Hospital, Pediatric Gastroenterology and Nutrition, Lille, France, ⁹Montpellier University Hospital, Gastroenterology, Montpellier, France

¹University Medical Center Groningen, Paediatric Gastroenterology Hepatology and Nutrition, Groningen, The Netherlands, ²University Medical Center Groningen, Laboratory Medicine, Groningen, The Netherlands, ³University Medical Center Groningen, Microbiology, Groningen, The Netherlands, ⁴Academic Medical Center, Paediatric Gastroenterology Hepatology and Nutrition, Amsterdam, The Netherlands, ⁵Wilhemina Kinder Ziekenhuis, Paediatric Gastroenterology Hepatology and Nutrition, Utrecht, The Netherlands, ⁶VU Medical Center, Paediatric Gastroenterology Hepatology and Nutrition, Amsterdam, The Netherlands, ⁷Isala Clinic, Paediatrics, Zwolle, The Netherlands, ⁸University Medical Center Groningen, Gastroenterology and Hepatology, Groningen, The Netherlands, ⁹Rijnstate Hospital, Paediatrics, Arnhem, The Netherlands, ¹⁰Medisch Spectrum Twente, Paediatrics, Enschede, The Netherlands, ¹¹Erasmus Medical Center – Sophia Kinder Ziekenhuis, Paediatric Gastroenterology Hepatology and Nutrition, Rotterdam, The Netherlands, ¹²Amphia Ziekenhuis, Paediatrics, Breda, The Netherlands, ¹³Haga Hospital, Paediatrics, The Hague, The Netherlands, ¹⁴Leiden University Medical Center, Paediatric Gastroenterology Hepatology and Nutrition, Leiden, The Netherlands, ¹⁵University Medical Center Groningen, Epidemiology, Groningen, The Netherlands

North Zealand University Hospital, Frederikssund, Denmark

¹Dartmouth-Hitchcock Medical Center, Lebanon, USA, ²Dartmouth-Hitchcock Medical Center, Medicine, Lebanon, USA, ³BDJ Solutions, Boston, USA, ⁴Delta Modelling, Chicago, USA, ⁵Association François Aupetit, Paris, France, ⁶Hôpital Saint-Antoine, Paris, France, ⁷Icahn School of Medicine at Mount Sinai, New York, USA, ⁸University Hospital CHU of Liège, Liège, Belgium

¹Rambam Health Care Campus, Haifa, Israel, ²Sheba Medical Center, Gastroenterology, Ramat Gan, Israel, ³IDF Medical Corps, Tel Hashomer, Israel, ⁴Schneider Children's Medical Center, Gastroenterology, Petach Tikva, Israel