¹Hadassah-Hebrew University Medical Center, Department of Obstetrics and Gynecology, Jerusalem, Israel, ²Shaare Zedek Medical Center, Department of Obstetrics and Gynecology, Jerusalem, Israel

¹The Royal Melbourne Hospital, Department of Colorectal Medicine and Genetics, Melbourne, Australia, ²Australian Catholic University, Department of Biostatistics, Melbourne, Australia, ³St Vincent’s Hospital, Department of Gastroenterology, Melbourne, Australia, ⁴The Royal Melbourne Hospital, Department of Gastroenterology, Melbourne, Australia, ⁵Epworth Healthcare, Department of Gastroenterology, Melbourne, Australia, ⁶Western Health, Department of Gastroenterology, Melbourne, Australia

¹University of Miami Miller School of Medicine, Gastroenterology Division, Miami, United States, ²Arena Pharmaceuticals- Inc., Clinical Development, San Diego, United States, ³Health Union- LLC, Insights Division, Philadelphia, United States, ⁴Health Union- LLC, Research and Analytics Division, Philadelphia, United States, ⁵AMF Consulting, Statistics and Data Management, Los Angeles, United States, ⁶Arena Pharmaceuticals- Inc., Health economic and outcomes research, San Diego, United States

¹University of Michigan, Department of Medicine- Division of Gastroenterology and Hepatology, Ann Arbor, United States, ²University of Michigan, Michigan Integrated Center for Health Analytics and Medical Prediction MiCHAMP, Ann Arbor, United States, ³University of Michigan, Morphomic Analysis Program, Ann Arbor, United States, ⁴University of Michigan, Department of Surgery, Ann Arbor, United States, ⁵VA Ann Arbor Health Care System, VA Center for Clinical Management Research, Ann Arbor, United States, ⁶University of Michigan, Department of Radiology, Ann Arbor, United States

¹Hospital de Galdakao, Gastroenterology, Bilbao, Spain, ²Hospital Universitario de Cruces, Gastroenterology, Barakaldo, Spain, ³Hospital Universitario Araba, Gastroenterology, Vitoria, Spain, ⁴Hospital Universitario Donostia, Gastroenterology, Donostia, Spain, ⁵Hospital de Mendaro, Gastroenterology, Mendaro, Spain, ⁶Hospital de San Eloy, Gastroenterology, Barakaldo, Spain, ⁷Onkologikoa, Gastroenterology, Donostia, Spain, ⁸Hospital de Mondragón-Alto Deba, Gastroenterology, Mondragón, Spain, ⁹Hospital Universitario de Basurto, Gastroenterology, Bilbao, Spain, ¹⁰Hospital de Zumárraga, Gastroenterology, Zumárraga, Spain, ¹¹Hospital Bidasoa, Gastroenterology, Irún, Spain, ¹²Clínica Universidad de Navarra, Gastroenterology, Pamplona, Spain, ¹³Hospital Clínico Universitario de Santiago de Compostela, Gastroenterology, Santiago de Compostela, Spain

Sheba Medical Center, Gastroenterology, Ramat Gan, Israel

Uneversity Teaching Hospital Ibn Sina- Mohammed V University, Department of Medecin C, Rabat, Morocco

University of Palermo, Gastroenterology and Hepatology Section- PROMISE, Palermo, Italy

¹IRCCS Sacro Cuore Don Calabria, IBD Unit, Negrar di Valpolicella, Italy, ²University of L’Aquila, Gastroenterology Unit, L’Aquila, Italy, ³IRCCS Sacro Cuore Don Calabria, Medical Analysis Laboratory, Negrar di Valpolicella, Italy, ⁴IRCCS Sacro Cuore Don Calabria, Clinical Research Unit, Negrar di Valpolicella, Italy

¹Division of Gastroenterology, Department of Medicine- Ribeirão Preto Medical School- University of São Paulo, Ribeirao Preto, Brazil, ²Division of Clinical Immunology, Department of Medicine- Ribeirão Preto Medical School- University of São Paulo, Ribeirão Preto, Brazil, ³Division of Coloproctology, Department of Surgery and Anatomy, Ribeirão Preto, Brazil, ⁴Molecular Biology Laboratory, Department of Surgery and Anatomy, Ribeirão Preto, Brazil, ⁵Pathology, Department of Pathology- Ribeirão Preto Medical School- University of São Paulo, Ribeirão Preto, Brazil

¹Grantham District General Hospital and United Lincolnshire Hospitals NHS Trust, Gastroenterology., Ickenham, UK, ²Foundation Traineee, Medicine, London, UK

¹Hospital de Santarém, Obstetrícia e Ginecologia, Santarém, Portugal, ²Instituto Português de Oncologia de Lisboa, Gastrenterologia, Lisboa, Portugal, ³Hospital de Santa Maria, Gastrenterologia, Lisboa, Portugal, ⁴Hospital de Santa Maria, Obstetrícia e Ginecologia, Lisboa, Portugal

¹IRCCS Sacro Cuore Don Calabria, IBD Unit, Negrar di Valpolicella, Italy, ²University of L’Aquila, Gastroenterology Unit, L’Aquila, Italy, ³IRCCS Sacro Cuore Don Calabria, Clinical research Unit, Negrar di Valpolicella, Italy, ⁴IRCCS Sacro Cuore Don Calabria, Medical Analysis Laboratory, Negrar di Valpolicella, Italy

¹Hospital da Senhora da Oliveira, Gastroenterology Department, Guimarães, Portugal, ²PT Government Associate Laboratory, ICVS/3B’s, Braga/Guimarães, Portugal, ³University of Minho, Life and Health Sciences Research Institute ICVS- School of Medicine, Braga, Portugal

Changi General Hospital- Singapore, Gatroenterology and Hepatology, Singapore, Singapore

¹Hospital General Universitario Alicante, Department of Gastroenterology- CIBERehd, Alicante, Spain, ², Gastroenterology, Alicante, Spain

Tel Aviv Sourasky Medical Center, Surgical Division, Tel Aviv, Israel

¹Hospital Infantil Universitario Niño Jesús, Department of Gastroenterology and Nutrition, Madrid, Spain, ²Hospital Infantil Universitario Niño Jesús, Department of Pediatrics, Madrid, Spain

Pirogov Russian National Research Medical University, Faculty of Pediatrics, Moscow, Russian Federation

¹National Institute of Medical Science and Nutrition Salvador Zubiran, Department of Gastroenterology, Mexico City, Mexico, ²IBD Clinic- Department of Gastroenterology- Instituto Nacional de Ciencias Medicas y Nutricion, Gastroenterology, Mexico, Mexico, ³Instituto Nacional de Psiquiatría Ramon de la Fuente Muñiz, Epidemiology, Mexico, Mexico