¹Concord Repatriation General Hospital, Department of Gastroenterology, Sydney, Australia, ²Singapore General Hospital, Gastroenterology, Singapore, Singapore, ³Institute of Digestive Disease, The Chinese University of Hong Kong, Department of Medicine, Hong Kong, Hong Kong, ⁴Royal Free Hospital, London, UK

Hospital Universitari Vall Hebron, Barcelona, Spain, Barcelona, Spain

¹QIMR Berghofer Medical Research Institute, Inflammatory Bowel Diseases Research Group, Herston, Australia, ²St. Vincent's Hospital Melbourne, Department of Gastroenterology and Hepatology, Melbourne, Australia, ³St. Vincent's Hospital Sydney, Department of Gastroenterology and Hepatology, Sydney, Australia, ⁴Mater Hospital, Department of Gastroenterology, Brisbane, Australia, ⁵Stratos Technology Partners, Christchurch, New Zealand, ⁶Royal Adelaide Hospital, Department of Gastroenterology and Hepatology, Adelaide, Australia, ⁷Liverpool Hospital, Department of Gastroenterology and Hepatology, Sydney, Australia, ⁸Royal Brisbane and Women’s Hospital, Department of Gastroenterology and Hepatology, Brisbane, Australia, ⁹University of Queensland, School of Medicine, Brisbane, Australia, ¹⁰University of Adelaide, School of Medicine, Adelaide, Australia

¹St.Vincent's University Hospital, Gastroenterology, Dublin, Ireland, ²St.Vincent's University Hospital, Center for Colorectal Disease, Dublin, Ireland, ³University College Dublin, School of Medicine, Dublin, Ireland, ⁴St Vincent's University Hospital, Centre for Colorectal Disease, Dublin, Ireland

¹UZ Leuven, Gastroenterology and Hepatology, Leuven, Belgium, ²UZ Leuven, Information Technology, Leuven, Belgium

¹Yokohama City University Medical Centre, Inflammatory Bowel Disease Centre, Yokohama, Japan, ²Yokohama City University Medical Centre, Department of Laboratory Medicine and Clinical Investigation, Yokohama, Japan, ³Yokohama City University, Department of Biostatistics, Yokohama, Japan, ⁴Yokohama City University Graduate School of Medicine, Department of Gastroenterology, Yokohama, Japan

¹Sapienza - University of Rome, Department of Pediatrics, Pediatric Gastroenterology and Liver Unit, Rome, Italy, ²Children's Center for Digestive Health Care, Atlanta, USA, ³Sapienza – University of Rome, Department of Radiological Sciences, Oncology, and Pathology, Rome, Italy, ⁴Nuovo Regina Margherita Hospital, Gastroenterology Department, Rome, Italy, ⁵Sapienza – University of Rome, Department of Pediatrics PICU, Rome, Italy

¹Kyung Hee University School of Medicine, Seoul, South Korea, ²Sungkyunkwan University School of Medicine, Seoul, South Korea, ³Seoul National University College of Medicine, Seoul, South Korea, ⁴University of Ulsan College of Medicine, Asan Medical Center, Seoul, South Korea, ⁵Ewha Womans University School of Medicine, Seoul, South Korea, ⁶St. Vincent’s Hospital, The Catholic University of Korea, Seoul, South Korea, ⁷Department of Internal Medicine Kangbuk Samsung Hospital Sungkyunkwan University, Seoul, South Korea, ⁸Korea University College of Medicine, Seoul, South Korea, ⁹Eulji University College of Medicine, Seoul, South Korea, ¹⁰Yonsei University College of Medicine, Seoul, South Korea, ¹¹Medical affairs, Janssen Korea, Seoul, South Korea

¹"Dana-Dwek" Children's Hospital, affiliated to the Sackler Faculty of Medicine, Tel Aviv University, The Pediatric Gastroenterology unit, Tel Aviv, Israel, ²Rabin Medical Center, Division of Gastroenterology, Petach Tikvah, Israel, ³Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel, ⁴"Dana-Dwek" Children's Hospital, Tel Aviv Sourasky Medical Center, Pediatric Sleep Center, Tel Aviv, Israel, ⁵The Hebrew University, Institute of Biochemistry, Food Science and Nutrition, Faculty of Agriculture, Food and Environment, Rehovot, Israel

¹University of Calgary, Gastroenterology, Calgary, Canada, ²Institute of Translational of Medicine, University of Birmingham, Birmingham, UK, ³Division of Gastroenterology, Baltimore, USA, ⁴Division of Gastroenterology IRCCS Policlinico San Donato, Milan, Italy, ⁵Division of Gastroenterology, Torino, Italy, ⁶Division of Gastroenterology, University Klinikum Tuebingen, Tuebingen, Germany, ⁷University of Calgary, Pathology, Calgary, Canada, ⁸Institute of Pathology ASST Ospedali Civili, Brescia, Italy, ⁹University of Calgary, Calgary, Canada, ¹⁰University of Leuven, Leuven, Belgium, ¹¹University John Hopkins, Baltimore, USA, ¹²University of Birmingham, Birmingham, UK, ¹³University of Portsmouth, Portsmouth, UK, ¹⁴Director of Internal Medicine II, HSK Hospital, Wiesbaden, Germany, ¹⁵Division of Gastroenterology, University Hospitals Leuven, Leuven, Belgium

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, ⁴La Tour Hospital and University of Geneva, Internal Medicine Department, Geneva, Switzerland, ⁵McGill University Health Center, Division of Gastroenterology, Epidemiology and Biostatistics and Occupational Health, Montreal, Canada, ⁶Semmelweis University, 1st Department of Medicine, Budapest, Hungary

¹University Hospital Zurich, Gastroenterology and Hepatology, Zurich, Switzerland, ²University Hospital Zurich, Division of Gastroenterology and Hepatology, Zurich, Switzerland, ³University of Lausanne, IUMSP, Lausanne, Switzerland, ⁴Klinik Hirslanden, Department of Gastroenterology, Zurich, Switzerland, ⁵Clinic Bethanien, Division of Gastroenterology and Hepatology, Zurich, Switzerland, ⁶University of Bern, Institute of Social and Preventive Medicine, Bern, Switzerland, ⁷University Hospital Lausanne, Division of Gastroenterology and Hepatology, Lausanne, Switzerland, ⁸Unilabs Switzerland, Medical Diagnostics, Duebendorf, Switzerland, ⁹Center of Gastroenterology and Hepatology, Zurich, Switzerland

¹"Gr. T. Popa" University of Medicine and Pharmacy, Iasi, Romania, ²Institute of Gastroenterology and Hepatology, Bd. Independentei, no. 1, Gastroenterology and Hepatology, Iasi, Romania, ³"Gr. T. Popa" University of Medicine and Pharmacy, Institute of Gastroenterology and Hepatology, Iasi, Romania

¹Complejo Hospitalario Ferrol, Gastroenterology, Ferrol, Spain, ²Hospital Universitario Puerta De Hierro, Madrid, Spain, ³Hospital Universitari de Bellvitge, Barcelona, Spain, ⁴Hospital Marques de Valdecilla, Santander, Spain, ⁵Hospital de Poniente, Almería, Spain, ⁶Hospital Universitario La Fe, Valencia, Spain, ⁷Hospital Universitario de La Princesa, Madrid, Spain, ⁸Hospital San Pedro De Alcantara, Caceres, Spain, ⁹Hospital Doctor Negrín, Gran Canaria, Spain, ¹⁰Hospital Miguel Servet, Zaragoza, Spain, ¹¹Hospital Central de Asturias, Oviedo, Spain, ¹²Hospital General Universitario Gregorio Marañón, Madrid, Spain, ¹³Universidad de La Coruña, Coruña, Spain

¹University of Ulsan College of Medicine, Asan Medical Center, Department of Gastroenterology, Seoul, South Korea, ²University of Ulsan College of Medicine, Asan Medical Center, Inflammatory Bowel Disease Center, Seoul, South Korea

¹University of Duisburg-Essen, Integrative Gastroenterology, Kliniken Essen-Mitte, Essen, Germany, ²Tech Lab Inc., Blacksburg, USA, ³Labor L+S, Enterosan, Bad Bocklet-Grossenbrach, Germany, ⁴University of Duisburg-Essen, Integrative and Internal Medicine, Essen, Germany, ⁵University Hospital Essen, Institute of Diagnostic and Interventional Radiology and Neuroradiology, Essen, Germany

¹Kyungpook National University School of Medicine, Internal Medicine, Daegu, South Korea, ²Yeungnam University College of Medicine, Department of Internal Medicine, Daegu, South Korea, ³Keimyung University School Of Medicine, Department of Internal Medicine, Daegu, South Korea, ⁴Catholic University of Daegu, Department of Internal Medicine, Daegu, South Korea, ⁵Goo Hospital, Department of Surgery, Daegu, South Korea

¹Hospital Bonorino Udaondo, IBD Section - Medicine, Buenos Aires, Argentina, ²Hospital of Infectious Diseases F. J. Muñiz, Hemostasis and Thrombosis Laboratory, Buenos Aires, Argentina, ³Instituto de Farmacología, Facultad de Medicina Universidad de Buenos Aires, Buenos Aires, Argentina, ⁴Instituto de Medicina Experimental (IMEX), Academia Nacional de Medicina, Buenos Aires, Argentina, ⁵Yale University School of Medicine, Department of Immunobiology and Pharmacology, New Haven, USA

¹University Hospitals Leuven, Department of Gastroenterology and Hepatology, Leuven, Belgium, ²KU Leuven, Department of Chronic Diseases, Metabolism and Ageing, Leuven, Belgium, ³Imeldaziekenhuis, Department of Gastroenterology and Hepatology, Bonheiden, Belgium, ⁴University Hospitals Leuven, Department of Laboratory Medicine, Leuven, Belgium

¹APHP Hôpital Saint Antoine, Gastro-entérologie et Nutrition, Paris, France, ²Hôpital Begin, Gastro-entérologie, Saint-Mandé, France