¹Erasmus MC, Department of Gastroenterology and Hepatology, Rotterdam, The Netherlands, ²University Medical Center Utrecht, Department of Gastroenterology and Hepatology, Utrecht, The Netherlands, ³Leiden University Medical Center, Department of Gastroenteorlogy and Hepatology, Leiden, The Netherlands, ⁴Academic Medical Center (AMC), Department of Gastroenterology and Hepatology, Amsterdam, The Netherlands, ⁵University Medical Center Groningen, Department of Gastroenterology and Hepatology, Groningen, The Netherlands, ⁶Maastricht University Medical Center (MUMC), Department of Gastroenterology and Hepatology, Maastricht, The Netherlands, ⁷Radboud University Medical Centre, Department of Gastroenterology and Hepatology, Nijmegen, The Netherlands, ⁸VU University Medical Centre, Department of Gastroenterology and Hepatology, Amsterdam, The Netherlands, ⁹Erasmus MC, Department of Biostatistics, Rotterdam, The Netherlands

¹Merck & Co., Inc., Kenilworth, USA, ²Janssen Research and Development, LLC, Spring House, PA, USA, ³Janssen Biologics BV, Leiden, The Netherlands, ⁴Merck Sharpe and Dohme, Kriens, Switzerland

¹Hopital Claude Huriez, Lille, France, ²Hopital de Roubaix, Roubaix, France

¹Fiona Stanley Hospital, Department of Gastroenterology, Perth, Australia, ²Royal Perth Hospital, Department of Gastroenterology, Perth, Australia, ³Insitute of Immunology and Infectious Diseases, Murdoch University, Statistics, Perth, Australia, ⁴Fiona Stanley hospital, Colorectal surgery, Perth, Australia, ⁵University of Western Australia, School of Medicine and Pharmacology, Perth, Australia

¹Montpellier University Hospital, Gastroenterology, Montpellier, France, ²Association François Aupetit, Paris, France

¹ASST Fatebenefratelli Sacco, DIBIC “L. Sacco” University of Milan, Gastrointestinal Unit, Milan, Italy, ²University Hospital of Parma, Department of Gastroenterology and Digestive Endoscopy, Parma, Italy

University of Calgary, IBD unit, division of Gastroenterology and Hepatology, Calgary, Canada

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, ³KU Leuven, Laboratory for Therapeutic and Diagnostic Antibodies, Department of Pharmaceutical and Pharmacological Sciences, Leuven, Belgium

¹Oslo University Hospital, Department of Gastroenterology, Oslo, Norway, ²University of Oslo, Faculty of Medicine, Oslo, Norway, ³Oslo University Hospital, Department of Medical Biochemistry, Oslo, Norway

¹St Michael`s Hospital, Department of Gastroenterology, Bratislava, Slovakia, <sup>2</sup>Assiduo, IBD Center, Bratislava, Slovakia, <sup>3</sup>University Hospital Louis Pasteur, 1st Department of Internal Medicine, Kosice, Slovakia, <sup>4</sup>University Hospital Louis Pasteur, Department of Laboratory Medicine, Bratislava, Slovakia, <sup>5</sup>St Michael`s Hospital, Department of Biochemistry, Bratislava, Slovakia, ⁶Comenius University, Faculty of Pharmacy, Bratislava, Slovakia

¹Örebro Universitet, School of Medical Sciences, Örebro Universitet, Sweden, ²Örebro Universitet, Örebro, Sweden, ³Karolinska Institutet, Microbiology, Tumor and Cell Biology, Stockholm, Sweden

Centre for Inflammatory Bowel Disease, St John of God Subiaco Hospital, Perth, Australia

¹Alfred Health and Monash University, Gastroenterology, Melbourne, Australia, ²Liverpool Hospital and University of New South Wales, Gastroenterology, Sydney, Australia, ³St. Vincent's Hospital and University of Melbourne, Gastroenterology, Melbourne, Australia, ⁴Monash Health and Monash University, Gastroenterology, Mebourne, Australia, ⁵CHU Saint-Etienne, Gastro-entérologie et Hépatologie, Saint-Etienne, France

¹Keio University School of Medicine, Division of Gastroenterology and Hepatology, Department of Internal Medicine, Tokyo, Japan, ²Keio University School of Medicine, Center for Diagnostic and Therapeutic Endoscopy, Tokyo, Japan, ³Keio University School of Medicine, Center for Preventive Medicine, Tokyo, Japan

¹McGill University Health Centre, Gastroenterology, Montreal, Canada, ²Division of Gastroenterology and Hepatology, Department of Medical Specialties, Geneva, Switzerland, ³Princess Alexandra Hospital, Department of Gastroenterology and Hepatology, Brisbane, Australia, ⁴Semmelweis University, 1st Department of Medicine, Budapest, Hungary

Amgen Inc., Biosimilars, Thousand Oaks, USA

¹Leiden University Medical Center, Gastroenterology, Leiden, The Netherlands, ²Leiden University Medical Center (LUMC), Care Registration, Leiden, The Netherlands

¹La Fe University and Polytechnic Hospital and CIBER-EHD, Department of Gastroenterology, Valencia, Spain, ²Hospital de Manises, Department of Gastroenterology, Manises, Spain, ³University Clinic Hospital of Valencia, Department of Gastroenterology and Hepatology, Valencia, Spain

Janssen Research and Development, LLC, Spring House, USA

St James University Hospital, Gastroenterology, Leeds, UK