Department of Surgery, Shanghai Ninth People’s Hospital -Shanghai Jiaotong University School, Shanghai, China

¹Department of Gastroenterology and Hepatology, University Hospital Medical Center ‘ Zvezdara’, Belgrade, Serbia, ²Department of Pathology, University Hospital Medical Center ‘ Zvezdara’, Belgrade, Serbia, ³Department of Nephrology, University Hospital Medical Center ‘ Zvezdara’, Belgrade, Serbia

Medical University – Varna- Bulgaria, University Hospital St. Marina- Clinic of Gastroenterology, Varna, Bulgaria

¹University of Helsinki and Helsinki University Hospital, University of Helsinki and Helsinki University Hospital, Helsinki, Finland, ²Tampere University Hospital, Tampere University Hospital, Tampere, Finland, ³ESiOR Oy, ESiOR Oy, Kuopio, Finland, ⁴Kanta-Häme Central Hospital, Kanta-Häme Central Hospital, Hämeenlinna, Finland, ⁵North Karelia Central Hospital, North Karelia Central Hospital, Joensuu, Finland, ⁶South Karelia Central Hospital, South Karelia Central Hospital, Lappeenranta, Finland, ⁷Lapland Central Hospital, Lapland Central Hospital, Rovaniemi, Finland, ⁸Oulu University Hospital, Oulu University Hospital, Oulu, Finland, ⁹Central Finland Central Hospital, Central Finland Central Hospital, Jyväskylä, Finland, ¹⁰Satakunta Central Hospital, Satakunta Central Hospital, Pori, Finland, ¹¹Vaasa Central Hospital, Vaasa Central Hospital, Vaasa, Finland, ¹²Turku University Hospital, Turku University Hospital, Turku, Finland, ¹³Kuopio University Hospital, Kuopio University Hospital, Kuopio, Finland, ¹⁴Kainuu Central Hospital, Kainuu Central Hospital, Kajaani, Finland, ¹⁵Päijät-Häme Central Hospital, Päijät-Häme Central Hospital, Lahti, Finland, ¹⁶Turku University Hospital- Salo Hospital, Turku University Hospital- Salo Hospital, Salo, Finland, ¹⁷Central Ostrobothnia Central Hospital, Central Ostrobothnia Central Hospital, Kokkola, Finland, ¹⁸Janssen Cilag AB, Medical Affairs, Solna, Sweden, ¹⁹Statens Serum Institut, Department of Epidemiology Research, Copenhagen, Denmark, ²⁰Janssen Cilag Limited, emea hemar, High Wycombe, UK, ²¹Janssen Cilag Oy, Medical Affairs, Espoo, Finland

¹Nutrition and Dietetic Department, Sotiria General Hospital, Athens, Greece, ²Department of Nutrition and Dietetics, Harokopio University, Athens, Greece, ³GI Unit- 3rd Department of Internal Medicine, Sotiria General Hospital, Athens, Greece, ⁴2nd Department of Surgery, Aretaieion Hospital, Athens, Greece

¹Hospital Universitario Ramón y Cajal, Servicio de Gastroenterologia y Hepatología, Madrid, Spain, ²Hospital Universitari de Bellvitge, Servicio de Aparato Digestivo, Barcelona, Spain, ³Hospital General Universitario de Alicante, Servicio Medicina Digestiva, alicante, Spain, ⁴Hospital Universitari Germans Trias i Pujol, Servicio de Aparato Digestivo, Badalona, Spain, ⁵Hospital Universitario de Fuenlabrada, Servicio de Aparato Digestivo, madrid, Spain, ⁶Hospital Universitario de Torrejón., Servicio de Aparato Digestivo, Madrid, Spain

¹New York University Medical Center, Medicine, New York, USA, ²Cleveland Clinic Medical Center, Medicine, Cleveland, USA, ³Karolinska, Clinical Epidemiology, Solna, Sweden, ⁴Gastroenterology and Hepatology, New York University Medical Center, New York, USA, ⁵Gastroenterology- Hepatology- and Nutrition, Cleveland Clinic Medical Center, Cleveland, USA

Department of Gastroenterology, University Hospital Puerta De Hierro, Majadahonda, Spain

¹Clalit health care, Occupational Medicine, Haifa, Israel, ²Technion, Israel institute of technology, Haifa, Israel, ³Clalit health care, Gastroenterology, Kfar Saba, Israel

¹Department of Pharmacy, Cambridge University Hospitals, Cambridge, UK, ²Department of Rheumatology, Cambridge University Hospitals, Cambridge, UK, ³Department of Dermatology, Cambridge University Hospitals, Cambridge, UK, ⁴Department of Gastroenterology, Cambridge University Hospitals, Cambridge, UK

¹Rabin Medical Center, IBD Center- Division of Gastroenterology, Petah-Tikva, Israel, ²Tel Aviv University, Sackler Faculty of Medicine-, Tel Aviv, Israel, ³Schneider Children’s Medical Center, The Institute of Gastroenterology- Nutrition and Liver diseases, Petah Tikva, Israel

¹Gastroenterology, Royal London Hospital- Barts Health NHS Trust, London, UK, ²Gastroenterology, University College London Hospital NHS Trust, London, UK, ³Gastroenterology, Guys and St Thomas’ Hospital NHS Trust, London, UK

¹CHU UCL Namur, Gastroenterology, Yvoir, Belgium, ²Icahn School of Medicine at Mount Sinai, Gastroenterology, New-York, USA, ³University Hospitals Leuven, Gastroenterology and Hepatology, Leuven, Belgium, ⁴University Hospital Gent, Gastroenterology, Gent, Belgium, ⁵AZ Delta, Gastroenterology, Roeselare, Belgium, ⁶Imelda General Hospital, Gastroenterology, Bonheiden, Belgium, ⁷Erasme University Hospital, Gastroenterology, Bruxelles, Belgium, ⁸University Hospital Antwerp, Gastroenterology, Edegem, Belgium, ⁹AZ Sint-Lucas, Gastroenterology, Gent, Belgium

¹Takeda, Quantitative Clinical Pharmacology, Cambridge, USA, ²University of Colorado, Department of Medicine Gastroenterology, Aurora, USA, ³Vanderbilt University Medical Center, Vanderbilt Digestive Disease Center, Nashville, USA, ⁴Morristown Medical Center, AHS Hospital Corporate, Morristown, USA, ⁵Northwestern University, Division of Gastroenterology and Hepatology, Chicago, USA, ⁶Takeda, Statistics and Quantitative Sciences, Cambridge, USA, ⁷Certara, Integrated Drug Development, Princeton, USA, ⁸Takeda, Global Program Management, Cambridge, USA, ⁹Takeda, Clinical Pharmacology, Cambridge, USA, ¹⁰Takeda, Clinical Science, Cambridge, USA

¹University of California San Diego, Division of Gastroenterology, La Jolla, USA, ²Atlanta Gastroenterology Associates, Gastroenterology, Atlanta, USA, ³University of Amsterdam- Academic Medical Center, Gastroenterology, Amsterdam, The Netherlands, ⁴Takeda Development Center Americas Inc-, Gastroenterology, Cambridge, USA, ⁵Takeda Development Center Americas Inc., Gastroenterology, Cambridge, USA, ⁶US Medical Office- Takeda Pharmaceuticals USA Inc., Gastroenterology, Deerfield, USA

¹Department of Gastroenterology, University of British Columbia, Vancouver, Canada, ²Department of Medical Affairs, Janssen Canada, Toronto, Canada, ³Department of Epidemiology and Biostatistics, Western University, London, Canada, ⁴Department of Gastroenterology, University of Calgary Calgary, Canada, ⁵Research and Development- LLC, Janssen Inc., Spring House, USA, ⁶Inflammatory Bowel Disease Centre, McGill University Health Centre, Montreal, Canada

¹Division of Internal Medicine, McGill University, Montreal, Canada, ²Division of Gastroenterology, McGill University, Montreal, Canada, ³Division of Gastroenterology, Hopital Hotel-Dieu de Lévis, Quebec City, Canada

¹Department of Colorectal Surgery, Cleveland Clinic, Cleveland, USA, ²Cedars-Sinai, Colon and Rectal Surgery, Cleveland- OH, USA

¹AbbVie, Clinical Pharmacology and Pharmacometrics, Ludwigshafen, Germany, ²Immunology Development, AbbVie, North Chicago, USA, ³Clinical Pharmacology and Pharmacometrics, AbbVie, North Chicago, USA