¹Department of General Surgery, Medical School of Nanjing University, Nanjing, China, ²The First Affiliated Hospital of USTC, Department of General Surgery, Hefei, China, ³Department of General Surgery, School of Medicine, Southeast University, Nanjing, China, ⁴Department of General Surgery, Jinling Hospital, Nanjing Medical University, Nanjing, China

¹Beaujon Hospital, Department of Gastroenterology- AP-HP- Paris Diderot University, Clichy, France, ²Pitié-Salpêtrière Hospital, Department of Rheumatology- AP-HP- Sorbonne University- UPMC university, Paris, France, ³E-health Services Sanoïa, Digital CRO, Gémenos, France, ⁴Biogen International GmbH, n/a, Zug, Switzerland, ⁵Biogen France SAS, n/a, Paris, France, ⁶Biogen UK, n/a, Maidenhead, UK

Ibn Sina University Hospital Mohamed V University- Souissi- Rabat, Medicine C, Rabat, Morocco

Addenbrooke’s Hospital, Dept of Gastroenterology, Cambridge, UK

¹The E. Wolfson Medical Center, Pediatric and Gastroenterology and nutrition unit, Holon, Israel, ²Tel-Aviv University, The Sackler Faculty of Medicine, Tel-Aviv, Israel, ³The E. Wolfson Medical Center, Gastroenterology, Holon, Israel

¹IBD Leuven, 1University Hospitals Leuven, Department of Gastroenterology and Hepatology, Leuven, Belgium, ²Progenity Inc., Progenity Inc., San Diego California, USA, ³KU Leuven, Laboratory for Therapeutic and Diagnostic Antibodies- Department of Pharmaceutical and Pharmacological Sciences, Leuven, Belgium

¹Hospital Universitari de Bellvitge, Gastroenterology, Barcelona, Spain, ²Hospital Universitari de Bellvitge, Pharmacy, Barcelona, Spain

¹Department of Gastroenterology, Sheba Medical Center, Ramat Gan, Israel, ²Department of Diagnostic Imaging, Sheba Medical Center, Ramat Gan, Israel

¹Queen Elizabeth University Hospital, Department of Gastroenterology, Glasgow, UK, ²Queen Elizabeth University Hospital, Department of Surgery, Glasgow, UK

¹Instituto Português de Oncologia de Lisboa, Gastrenterologia, Lisboa, Portugal, ²Hospital de Santa Maria, Gastrenterologia, Lisboa, Portugal

Shanghai Ninth People’s Hospital- Shanghai Jiao Tong University School of Medicine Department of general surgery, Shanghai Ninth People’s Hospital- Shanghai Jiao Tong University School of Medicine, Department of general surgery, shanghai, China

¹L’altrastatistica Srl, for GB Pharma Services and Consulting S.r.l, Rome, Italy, ²Clinical Research and Development Consultants, S.r.l., Sesto Fiorentino, Italy, ³GB Pharma Services and Consulting, S.r.l., Pavia, Italy, ⁴Beingpharma, S.r.l, Milano, Italy

¹Hyogo College of Medicine, Department of Intestinal Inflammation Research, Hyogo, Japan, ²Hyogo College of Medicine, Division of Internal Medicine- Department of Inflammatory Bowel Disease, Hyogo, Japan

La Rabta Hospital Tunis El Manar University, Department of Gastroenterology A, Tunis, Tunisia

Inselspital Bern, Gastroenterology- Clinical for Visceral Surgery and Medicine, Bern, Switzerland

¹Mater Dei Hospital- Malta, Department of Medicine, Kirkop, Malta, ²Mater Dei Hospital- Malta, Department of Gastroenterology, Msida, Malta

¹Unit for Clinical Nutrition, Department of Gastroenterology and Hepatology, Zagreb, Croatia, ²Clinical Hospital Centre Zagreb, Department of Gastroenterology and Hepatology, Zagreb, Croatia, ³Zagreb School of Medicine, University of Zagreb, Zagreb, Croatia

¹Inflammatory Bowel Disease Center, University of Chicago Medicine, Chicago, Illinois, USA, ²Department of Pediatrics and Medicine- Icahn School of Medicine at Mount Sinai, New York, New York, USA, ³IBD Center- Department of Gastroenterology- Humanitas Research Hospital, Rozzano, Milan, Italy, ⁴IBD Group- Botucatu Medical School- São Paulo State University, São Paulo, Brazil, Brazil, ⁵Pfizer Inc., Lima, Peru, Peru, ⁶Pfizer Inc., Collegeville, Pennsylvania, USA, ⁷Pfizer Inc., New York, New York, USA

¹University Hospital Santiago De Compostela CHUS, Department of Gastroenterology- IBD Unit, Santiago De Compostela, Spain, ²University Hospital Santiago De Compostela CHUS, Department of Pharmacy, Santiago De Compostela, Spain

¹Janssen Research and Development- LLC, Clinical Pharmacology, Horsham- PA, USA, ²Connecticut Children’s Medical Center, Pediatrics, Hartford- CT, USA, ³Shaare Zedek Medical Center, Pediatrics, Jerusalem, Israel, ⁴SickKids Hospital, Pediatrics, Toronto, ON, Canada, ⁵Janssen Research and Development, LLC, Research and Development, Horsham, PA, USA, ⁶former employee of Janssen Research and Development, LLC, current employee of Provention Bio, Research and Development, Horsham, PA, USA, ⁷Goryeb Children’s Hospital/Atlantic Health, Pediatrics, Morristown, NJ, USA