¹Icahn School of Medicine at Mount Sinai, New York, USA, ²Nancy University Hospital, Université de Lorraine, Nancy, France, ³Janssen Research and Development, LLC, Spring House, USA, ⁴Janssen Research and Development, Spring House, USA, ⁵Auckland City Hospital, Auckland, New Zealand, ⁶University of Auckland, Auckland, New Zealand, ⁷Concord Hospital, Sydney, Australia, ⁸Macquarie University Hospital, Sydney, Australia, ⁹Warwick Medical School, University Hospital Coventry, Warwickshire, UK, ¹⁰Humanitas Research Hospital, Milan, Italy, ¹¹University of Leuven, Leuven, Belgium, ¹²Cedars-Sinai Medical Center, Los Angeles, USA, ¹³University of California San Diego, La Jolla, USA

¹Mayo Clinic, Rochester, Minnesota, USA, ²The University of Chicago Medicine, Chicago, Illinois, USA, ³Hospital Clínic Barcelona, Barcelona, Spain, ⁴AbbVie Inc., North Chicago, Illinois, USA, ⁵Oxford University Hospitals, Oxford, UK

¹Amiens university hospital, Amiens, France, ²Icahn School of Medicine at Mount Sinai, Division of Gastroenterology, New York, USA

¹Hospital Clinic Barcelona, Barcelona, Spain, ²AbbVie Inc., Worcester MA, USA, ³Guy's and St Thomas' Hospital, London, UK, ⁴AbbVie Inc., Chicago, IL, USA, ⁵AbbVie Inc., Ludwigshafen am Rhein, Germany, ⁶University of Western Ontario, London, ON, Canada

¹St Mark's Hospital, Department of Colorectal Surgery, London, UK, ²Imperial College London, Department of Surgery and Cancer, London, UK, ³University of Kelaniya, Department of Surgery, Kelaniya, Sri Lanka, ⁴Humanitas Clinical and Research Center, Division of Colon and Rectal Surgery, Milan, Italy, ⁵St Mark's Hospital, Department of Gastroenterology, London, UK, ⁶Humanitas University, Department of Biomedical Sciences, Milan, Italy

¹Icahn School of Medicine at Mount Sinai, New York, USA, ²Janssen Biologics BV, Leiden, The Netherlands, ³Janssen Scientific Affairs, LLC, Horsham, USA, ⁴Janssen Research and Development, LLC, Spring House, USA, ⁵Icahn School of Medicine at Mt Sinai, New York, USA, ⁶Cedars-Sinai Medical Center, Los Angeles, USA, ⁷University of Birmingham, Birmingham, UK, ⁸University of California San Diego, La Jolla, USA

¹The Royal London Hospital, Barts Health NHS Trust, Department of Gastroenterology, London, UK, ²Guy's and St Thomas' NHS Foundation Trust, Department of Gastroenterology, London, UK, ³University College London Hospitals NHS Foundation Trust, Department of Gastroenterology, London, UK

¹Asan Medical Center, Gastroenterology, Seoul, South Korea, ²Asan Medical Center, Inflammatory Bowel Disease Center, Seoul, South Korea, ³Asan Medical Center, Radiology, Seoul, South Korea

¹All India Institute of Medical Sciences, New Delhi, India

¹Amsterdam UMC, VU Medical Center, Gastroenterology and Hepatology, Amsterdam, The Netherlands, ²Zuyderland Medical Center, Clinical Pharmacy, Sittard-Geleen-Heerlen, The Netherlands, ³Rijnstate Hospital, Gastroenterology and Hepatology, Arnhem, The Netherlands, ⁴Zuyderland Medical Center, Gastroenterology and Hepatology, Sittard-Geleen-Heerlen, The Netherlands

¹University of Birmingham, Birmingham, UK, ²Crohn-Colitis Care Unit (UACC), Hospital Universitari Vall, Vall d'Hebron, Spain, ³AbbVie Ltd., Dublin, Ireland, ⁴AbbVie Inc., North Chicago, Illinois, USA, ⁵University of Lorraine, Nancy, France

¹Amiens Hospital, Gastroenterology, Amiens, France, ²Roubaix Hospital, Gastroenterology, Roubaix, France, ³Caen Hospital, Gastroenterology, Caen, France, ⁴Claude Huriez Hospital, Lille University, Gastoenterology, Lille, France

¹Hospital da Senhora da Oliveira, Guimarães, Gastroenterology, Guimarães, Portugal, ²School of Medicine, University of Minho, Braga, Portugal, ³ICVS/3B’s Associate Laboratory, University of Minho, Braga/Guimarães, Portugal

¹Western University, London, ON, Canada, ²Takeda Pharmaceuticals International, Deerfield, IL, USA, ³Precision Xtract, Vancouver, BC, Canada, ⁴Precision Xtract, Oakland, CA, USA, ⁵Takeda Pharmaceuticals International AG, Zurich, Switzerland, ⁶Takeda Pharmaceuticals International, Deerfield, USA

¹Our Lady's Children's Hospital Crumlin, Pharmacy, Dublin, Ireland

¹Beaujon Hospital, Colorectal Surgery, Clichy, France, ²Beaujon Hospital, Gastroenterology, Clichy, France, ³CHU Rouen, Digestive Surgery, Rouen, France, ⁴Linkoping Hospital, Digestive Surgery, Linkoping, Sweden, ⁵Policlinico Tor Vergata, Digestive Surgery, Roma, Italy, ⁶Policlinico Sant'Orsola-Malpighi, Digestive Surgery, Bologna, Italy, ⁷Hospital Universitari Val d'Hebron, Digestive Surgery, Barcelona, Spain, ⁸Hôpital Nord, Digestive Surgery, Marseille, France, ⁹CHU Bordeaux, Gastroenterology, Bordeaux, France, ¹⁰Humanitas Research Hospital, Colorectal Surgery, Rozzano - Milano, Italy, ¹¹CHU Lille, Digestive Surgery, Lille, France, ¹²Ospedale L. Sacco, Chirurgia Generale 2, Milano, Italy, ¹³University Hospital La Fe, Digestive Surgery, Valencia, Spain, ¹⁴CHU Liege, Gastroenterology, Liege, France

¹Sapienza University of Rome, Department of Internal Medicine and Medical Specialties, Gastroenterology, Rome, Italy

¹Progenika Biopharma-Grifols, Derio, Spain

¹Rangueil Hospital and University, Gastroenterology, Toulouse, France, ²Afa Crohn RCH France, Nice, France, ³Afa Crohn RCH France, Paris, France, ⁴Nice Hospital and University, Gastroenterology, Nice, France, ⁵Nancy Brabois Regional University Hospital, Vandœuvre-lès-Nancy, France, ⁶Saint-Louis Hospital, Gastroenterology, Paris, France

¹Krankenhaus der Barmherzigen Brüder, Internal Medicine, St. Veit an der Glan, Austria, ²Institute for Pharmaeconomic Research, Vienna, Austria, ³Datamedrix GmbH, Vienna, Austria, ⁵Medical University of Vienna, Department of Internal Medicine III, Division of Gastroenterology and Hepatology, Vienna, Austria