¹Fundeni Clinical Institute, Gastroenterology, Bucharest, Romania, ²Colentina Hospital, Bucharest, Romania, ³‘Saint Spiridon’ Hospital, Iasi, Romania

¹Centro Hospitalar Vila Nova de Gaia/Espinho, Gastroenterology, Vila Nova de Gaia, Portugal

¹Xiasha Branch of Sir Run Run Shaw Hospital, School of Medicine, Zhejiang University, Gastroenterology, Hangzhou, China, ²The First Affiliated Hospital of Sun Yat-sen University, Gastroenterology, Guangzhou, China, ³The Sixth Affiliated Hospital of Sun Yat-sen University, Gastroenterology, Guangzhou, China, ⁴Xijing Hospital of The Fourth Military Medical University, Gastroenterology, Xi’an, China, ⁵Renji Hospital, School of Medicine, Shanghai Jiaotong University, Gastroenterology, Shanghai, China, ⁶Peking Union Medical College Hospital, Gastroenterology, Beijing, China, ⁷The Tenth People's Hospital Affiliated to Tongji University, Gastroenterology, Shanghai, China, ⁸Inflammatory Bowel Disease Center, Sir Run Run Shaw Hospital, School of Medicine, Zhejiang University, Gastroenterology, Hangzhou, China

¹Yokkaichi Hazu Medical Centre, IBD Centre, Yokkaichi, Japan, ²Hamamatsu South Hospital, Center for Gastroenterology and Inflammatory Bowel Disease Research, Hamamastu, Japan, ³Hamamatsu University School of Medicine, First Department of Medicine, Hamamatsu, Japan, ⁴Hamamatsu University School of Medicine, Department of Endoscopic and Photodynamic Medicine, Hamamatsu, Japan

¹Instituto Português de Oncologia de Lisboa Francisco Gentil, EPE, Gastroenterology, Lisboa, Portugal

¹University of California San Diego, Department of Medicine, La Jolla, USA, ²Robarts Clinical Trials, Inc., London, Canada, ³University of Western Ontario, Medicine, London, Canada, ⁴University of Western Ontario, Epidemiology and Biostatistics, London, Canada

¹Centro Hospitalar de Vila Nova de Gaia e Espinho, Vila Nova de Gaia, Portugal

¹ISCARE IVF, a.s., Clinical and Research Centre for IBD, Prague, Czech Republic, ²General University Hospital and First Faculty of Medicine, Charles University, Institute of Medical Biochemistry and Laboratory Medicine, Prague, Czech Republic, ³First Faculty of Medicine, Charles University and Military University Hospital, Department of Internal Medicine, Prague, Czech Republic, ⁴First Faculty of Medicine, Charles University, Institute of Pharmacology, Prague, Czech Republic

¹Centro Hospitalar Tondela Viseu, Gastrenterologia, Viseu, Portugal

¹Centre de Recherche en Transplantation et Immunologie UMR 1064, Inserm, Université de Nantes, CHU Nantes, 44000, Nantes, France, ²Laboratoire d'Immunologie, CHU Nantes, 44000, Nantes, France, ³CRCINA, INSERM, Université d'Angers, Université de Nantes, 44000, Nantes, France, ⁴Institut des Maladies de l’Appareil Digestif (IMAD), CHU Nantes, 44000, Nantes, France, ⁵UMR 1235, Neuropathies entériques et pathologies digestives, Université de Nantes,, 44000, Nantes, France

¹Takeda Pharmaceuticals, Cambridge, USA, ²Metrum Research Group, Tariffville, USA

¹Assaf Harofeh Medical Center, Tel Aviv University, Department of Surgery, Tel Aviv, Israel, ²Hospital Clínic de Barcelona, Gastroenterology Department, Barcelona, Spain, ³Patient Advisor, County Dublin, Ireland, ⁴Takeda Development Centre, London, UK, ⁵Takeda Pharmaceuticals International AG, Zurich, Switzerland

¹University Hospital, Gastroenterology, Santiago de Compostela, Spain, ²Clinic Hospital, Valladolid, Spain, ³University Hospital, Pharmacy, Santiago de Compostela, Spain

¹Habib Thameur Hospital, Gastroenterology, Tunis, Tunisia

¹Clinical Hospital Centre Osijek, Department of Gastroenterology and Hepatology, Osijek, Croatia, ²University J.J. Strossmayer of Osijek, Faculty of Medicine, Osijek, Croatia

¹Hospital Universitari Germans Trias i Pujol, Badalona, Spain, ²Institut d′Investigació en Ciències de la Salut Germans Trias i Pujol, Badalona, Spain, ³Hospital Universitario Ramón y Cajal, Madrid, Spain, ⁴Centro de Investigación Biomédica en Red de Enfermedades Hepáticas y Digestivas (CIBEREHD), Madrid, Spain

¹University of Palermo, Gastroenterology Section, DiBiMis, Palermo, Italy, ²Gastroenterology Section, DiBiMis, Palermo, Italy

¹Fondazione Policlinico Universitario A. Gemelli IRCCS - Università Cattolica del Sacro Cuore, UOC Internal Medicine, Gastroenterology and Hepatology Gastroenterological and Oncological Area, Gastroenterological and Endocrino-Metabolical Sciences Department, Roma, Italy, ³Ospedale Pediatrico Bambino Gesù IRCCS, Unità per lo studio del Microbioma Umano, Roma, Italy, ⁴Case Western Reserve University, Cleveland, USA

¹Shaare Zedek Medical Center, Jerusalem, Israel, ²Dana-Dwek Children's Hospital – Tel Aviv Sourasky Medical Center, Tel Aviv, Israel, ³Schneider Children's Medical Center, Petah Tikva, Israel, ⁴Hadassah Medical Center, Jerusalem, Israel, ⁵Kaplan Medical Center, Rehovot, Israel, ⁶Carmel Medical Center, Haifa, Israel, ⁷Rambam Medical Center, Haifa, Israel, ⁸Meir Medical Center, Kfar Saba, Israel, ⁹Saint Vincent's Catholic Medical Center, Nazareth, Israel, ¹⁰Bnai Zion Medical Center, Haifa, Israel, ¹¹HaEmek Medical Center, Afula, Israel, ¹²Soroka Medical Center, Beer-Sheva, Israel, ¹³Assaf Harofeh Medical Center, Be'er Ya'akov, Israel, ¹⁴Poriya Medical Center, Tiberias, Israel, ¹⁵Galilee Medical Center, Nahariya, Israel, ¹⁶Ziv Medical Center, Tsfat, Israel, ¹⁷Barzilai Medical Center, Ashkelon, Israel, ¹⁸Assuta Ashdod Medical Center, Ashdod, Israel, ¹⁹Sheba Medical Center, Ramat Gan, Israel

¹Mayo Clinic College of Medicine, Rochester, USA, ²University of California San Diego, La Jolla, USA, ³Atlanta Gastroenterology Associates, Atlanta, USA, ⁴Humanitas University, Milan, Italy, ⁵Takeda Development Center Americas Inc., Cambridge, USA, ⁶University Hospitals Leuven, Leuven, Belgium