¹Shiga University of Medical Science, Gastroenterology, Otsu, Japan, ²Kyoto Prefectural University, Agriculture and Life Science, Kyoto, Japan, ³Kyoto Prefectural University of Medicine, Molecular Gastroenterology and Hepatology, Kyoto, Japan

¹Akershus University Hospital, Akershus, Norway, ²Genetic Analysis, 0510 Oslo, Norway, ³Orebro University, Department of Gastroenterology, Faculty of Medicine and Healthy, Orebro, Sweden, ⁴Ersta Hospital, Stockholm, Sweden, ⁵University of Oslo, 0316 Oslo, Norway

¹Kobe University, Division of Gastroenterology, Department of Internal Medicine, Graduate School of Medicine, Kobe, Japan, ²Kobe University, Graduate School of Science, Technology and Innovation, Kobe, Japan, ³RIKEN Center, Sustainable Resource Science, Yokohama, Japan, ⁴Kobe University, Department of Bioresource Science, Graduate School of Agricultural Science, Kobe, Japan, ⁵Kobe University, Research Center for Food Safety and Security, Graduate School of Agricultural Science, Kobe, Japan

¹Hannover Medical School, Gastroenterology, Hepatology and Endocrinology, Hannover, Germany, ²German Center for Infection Research (DZIF), Hannover-Braunschweig, Germany, ³Hannover Medical School, Institute of Medical Microbiology and Hospital Epidemiology, Hannover, Germany, ⁴Tübingen University Hospital, Division of Infectious Diseases, Department of Internal Medicine 1, Tübingen, Germany, ⁵German Center for Infection Research (DZIF), Tübingen, Germany, ⁶Tübingen University Hospital, Institute of Medical Microbiology and Hygiene, Tübingen, Germany, ⁷Technische Universität München, Institute for Medical Microbiology, Munich, Germany, ⁸German Center for Infection Research (DZIF), Munich, Germany, ⁹University Hospital of Cologne, 1st Department of Internal Medicine, Cologne, Germany, ¹⁰German Center for Infection Research (DZIF), Cologne, Germany, ¹¹University of Cologne, Institute for Medical Microbiology, Immunology and Hygiene, Cologne, Germany, ¹²University Hospital Schleswig-Holstein, Department of Infectious Diseases and Microbiology, Lübeck, Germany, ¹³German Center for Infection Research (DZIF), Hamburg-Borstel-Lübeck, Germany, ¹⁴Chair of Medical Microbiology and Hospital Epidemiology, Max von Pettenkofer Institute, Munich, Germany

¹Icahn School of Medicine, Department of Genetics and Genomic Sciences, New York, USA, ²Hospital Beatriz Ângelo, Gastroenterology Division, Loures, Portugal, ³Icahn School of Medicine, Division of Gastroenterology, Department of Medicine, New York, USA

St. Luke's International Hospital, Gastroenterology, Tokyo, Japan

¹Icahn School of Medicine at Mount Sinai, Department of Genetics and Genomic Sciences, New York, USA, ²Icahn School of Medicine at Mount Sinai, Department of Obstetrics, Gynecology and Reproductive Sciences, New York, USA, ³Icahn School of Medicine at Mount Sinai, Division of Pediatric Gastroenterology and Hepatology, New York, USA, ⁴Calpro AS, Lysaker, Norway, ⁵Icahn School of Medicine at Mount Sinai, Division of Gastroenterology, Department of Medicine, New York, USA, ⁶Hospital Beatriz Ângelo, Gastroenterology Division, Loures, USA

¹Evangelismos Hospital, Gastroenterology Department, Athens, Greece, ²Evangelismos Hospital, Microbiology Department, Athens, Greece, ³Venizeleio General Hospital, Gastroenterology Department, Heraklion, Greece, ⁴Venizeleio General Hospital, Microbiology Department, Heraklion, Greece, ⁵University Hospital Heraklion, Gastroenterology Department, Heraklion, Greece, ⁶University Hospital Heraklion, Microbiology Department, Heraklion, Greece, ⁷Nikaia General Hospital, Gastroenterology Department, Athens, Greece, ⁸Nikaia General Hospital, Microbiology Department, Athens, Greece, ⁹University Hospital of Patras, Gastroenterology Department, Patras, Greece, ¹⁰University Hospital of Patras, Microbiology Department, Patras, Greece, ¹¹Alexandra General Hospital, Gastroenterology Department, Athens, Greece, ¹²Alexandra General Hospital, Microbiology Department, Athens, Greece

Hanyang University Guri Hospital, Gastroenterology, Guri, South Korea

¹CiiEM, Centro de Investigação Interdisciplinar Egas Moniz, Almada, Portugal, ²Hospital Garcia de Orta, Gastroenterology Department, Almada, Portugal

¹Lithuanian University of Health Sciences, Department of Gastroenterology, Kaunas, Lithuania, ²Lithuanian University of Health Sciences, Department of Children Diseases, Kaunas, Lithuania, ³Christian-Albrechts-Universität zu Kiel, Institute of Clinical Molecular Biology, Kiel, Germany

Hospital Universitari Vall d'Hebron, Digestive Disease Research Unit, Barcelona, Spain

¹Seoul National University Bundang Hospital, Department of Pediatrics, Seongnam, South Korea, ²Seoul National University, Department of Pediatrics, Seoul, South Korea

¹Rabin Medical Center, Division of Gastroenterology, Petah-Tikva, Israel, ²Tel Aviv University, Sackler Faculty of Medicine, Tel Aviv, Israel, ³Tel Aviv University, Department of Molecular Microbiology and Biotechnology, George S. Wise Faculty of Life Sciences, Tel Aviv, Israel, ⁴Tel Aviv Sourasky Medical Center, Proctology Unit, Department of Surgery, Tel Aviv, Israel

¹University Hospital Zagreb, Croatia, Zagreb, Croatia, ²University of Zagreb School of Medicine, Zagreb, Croatia, ³MRC London Institute of Medical Sciences, London, UK, ⁴Clinical Hospital Dubrava, Zagreb, Croatia, Zagreb, Croatia, ⁵Fidelta d.o.o. Zagreb, Croatia, Zagreb, Croatia, ⁶Xellia d.o.o. Zagreb, Croatia, Zagreb, Croatia, ⁷⁷Polyclinic “Dr. Zora Profozić”, Zagreb, Croatia, Zagreb, Croatia

¹Klinikum Lueneburg, Lueneburg, Germany ²Department C, Gastroenterology Section, Herlev and Gentofte University Hospital, Hellerup, Denmark ³Department of Gastroenterology, Royal London Hospital, Barts Health NHS Trust, London, United Kingdom ⁴Department of Gastroenterology, North Zealand University Hospital, Fredrikssund, Denmark ⁵Department of Gastroenterology, Division of Gastroenterology, Mater Dei Hospital, Msida, Malta ⁶Department of Gastroenterology, Hospital Άlvaro Cunqueiro, Vigo, Spain ⁷Department of Gastroenterology, Ankara, Turkey ⁸Department of Gastroenterology and Hepatology, University and Medical School of Ioannina, Ioannina, Greece ⁹Department of Gastroenterology, Hepatology and Nutrition Therapy, Pauls Stradins Clinical University Hospital, Riga, Latvia ¹⁰Paediatric Gastroenterology & Nutrition Unit, Wolfson Medical Center, Tel Aviv, Israel ¹¹Department of Gastroenterology, Evangelismos Hospital, Athens, Greece ¹²Department of Gastroenterology, Dublin, Ireland ¹³Department of Gastroenterology, Izmir Katip Celebi University, Izmir, Turkey ¹⁴Department of Internal Medicine, Södra Älvsborgs Hospital, Borås, Sweden ¹⁵Department of Emergency, Division of Gastroenterology, University Hospital Careggi, Florence, Italy

¹Stanford University School of Medicine, Gastroenterology & Hepatology, Stanford, California, United States ²Johns Hopkins University School of Medicine, Gastroenterology & Hepatology, Baltimore, Maryland, United States ³Icahn School of Medicine at Mount Sinai, Division of Gastroenterology, New York, New York, United States

¹North Zealand University Hospital, Department of Gastroenterology, Frederikssund, Denmark ²Hvidvore University Hospital, Gastrounit, medical section, Hvidovre, Denmark ³Susan and Leonard Feinstein IBD Clinical Center Icahn School of Medicine at Mount Sinai, Departments of Medicine and Pediatrics, New York, United States ⁴Zealand University Hospital, Department of Medical Gastroenterology, Køge, Denmark

¹University of Groningen and University Medical Center Groningen, Department of Gastroenterology and Hepatology, Groningen, Netherlands ²University of Groningen and University Medical Center Groningen, Department of Genetics, Groningen, Netherlands ³University Medical Center Utrecht, Department of Gastroenterology and Hepatology, Utrecht, Netherlands ⁴VU University Medical Center, Department of Gastroenterology and Hepatology, Amsterdam, Netherlands ⁵University Medical Center St. Radboud, Department of Gastroenterology and Hepatology, Nijmegen, Netherlands ⁶Leiden University Medical Center, Department of Gastroenterology and Hepatology, Leiden, Netherlands ⁷University Medical Center Maastricht, Division of Gastroenterology and Hepatology, Maastricht, Netherlands ⁸Erasmus Medical Center, Department of Gastroenterology and Hepatology, Rotterdam, Netherlands ⁹Amsterdam Medical Center, Department of Gastroenterology and Hepatology, Amsterdam, Netherlands

¹University of Bologna, Gastroenterology, BOLOGNA, Italy ²University of Toronto, Canada, Gastroenterology, Toronto, Canada ³Icahn School of Medicine, Levy Library, New York, United States ⁴University Hospital of Ioannina - Greece, Department of Gastroenterology, Ioannina, Greece ⁵Icahn School of Medicine, Gastroenterology, New York, United States ⁶Icahn School of Medicine at Mount Sinai, Department of Gastroenterology, New York, United States ⁷Icahn School of Medicine at Mount Sinai, Division of Gastroenterology, New York, New York, United States