¹Hôpital Bicêtre, Service de gastro-entérologie, Le Kremlin-Bicêtre, France, ²Hôpital Henri Mondor, Service de gastro-entérologie, Créteil, France, ³Hôpital Saint-Antoine, Service de gastro-entérologie, Paris, France, ⁴Hôpital Beaujon, Service de gastro-entérologie et assistance nutritive, Clichy, France, ⁵Hôpital Saint-Louis, Service de gastro-entérologie, Paris, France

¹Icahn School of Medicine at Mount Sinai, New York, NY, USA, ²Division of Gastroenterology and Hepatology, Department of Internal Medicine, China Medical University Hospital, China Medical University, Taichung, Taiwan, Province of China, ³Pfizer Inc., Collegeville, PA, USA, ⁴Pfizer Inc., New York, NY, USA, ⁵Department of Gastroenterology, University Hospitals Leuven, Leuven, Belgium

¹Tytgat Institute for Liver and Intestinal Research, Amsterdam UMC, Amsterdam, The Netherlands, ²Department of Surgery, Amsterdam UMC, Amsterdam, The Netherlands, ³Department of Surgery, Flevoziekenhuis, Almere, The Netherlands, ⁴Department of Gastroenterology and Hepatology, Amsterdam UMC, Amsterdam, The Netherlands

¹KU Leuven, Department of Microbiology, Immunology and Transplantation- Allergy and Clinical Immunology Research Group,Leuven, Belgium, ²KU Leuven, Department of Chronic Diseases, Metabolism and Ageing, Translational Research Center for Gastrointestinal Disorders TARGID, Leuven, Belgium, ³Clinical Gastroenterology Unit, Department of Biomedical Clinical and Experimental Sciences Mario Serio, University of Florence, Florence, Italy, ⁴Department of Gastroenterology and Hepatology, University Hospitals Leuven, KU Leuven, Leuven, Belgium, ⁵Department of Imaging and Pathology, Translational Cell and Tissue Research, KU Leuven, Leuven, Belgium, ⁶Department of General Internal Medicine, University Hospitals Leuven, KU Leuven, Leuven, Belgium

¹Health Institute Pere Virgili IISPV, Hospital Joan XXIII of Tarragona, Tarragona, Spain, ²General Surgery Service, Hospital Joan XXIII, Tarragona, Spain, ³Digestive Unit, Hospital Joan XXIIII, Tarragona, Spain, ⁴General Surgery Service, Hospital University Vall d’Hebron, Barcelona, Spain

¹Department of Gastroenterology and Hepatology, Leiden University Medical Center, Leiden, The Netherlands, ²Department of Biomedical Data Sciences, Leiden University Medical Center, Leiden, The Netherlands

¹University Clinic Erlangen, Department of Medicine 1, Erlangen, Germany, ²Charité, Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin, Humboldt-Universität zu Berlin, Berlin Institute of Health, Medizinische Klinik für Gastroenterologie, Infektiologie und Rheumatologie, Berlin, Germany

¹Department of Pharmacology, Universidad de Valencia, Valencia, Spain, ²Department of Medicine, Universidad de Valencia, Valencia, Spain, ³Department of Gastroenterology, UniversitatsSpital Zurich, Zurich, Switzerland, ⁴Department of Endocrinology and Metabolism, Hospital Dr. Peset, Valencia, Spain

¹Department of Gastroenterology, Fiona Stanley Hospital, Perth, Australia, ²Department of Radiology, Fiona Stanley Hospital, Perth, Australia, ³School of Medicine and Pharmacology, University of Western Australia, Perth, Australia

¹Department of Gastroenterology, Cincinnati Children’s Hospital Medical Center and the University of Cincinnati College of Medicine, Cincinnati, USA, ²Department of Gastroenterology, Emory University, Atlanta, USA, ³Department of Gastroenterology, Sheba Medical Center, Ramat Gan, Israel, ⁴Institute of Technology, Georgia Institute of Technology, Atlanta, USA, ⁵Department of Gastroenterology, Connecticut Children’s Medical Center, Hartford, USA

¹Immunology Department, Weizmann Institute of Science, Rehovot, Israel, ²Department of Gastroenterology, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China

¹Hospital Clínico San Carlos, Gastroenterology Department, Madrid, Spain, ²Hospital Ramón y Cajal, Gastroenterology Department- IBD Unit, Madrid, Spain, ³Hospital de Galdakao, Gastroenterology Department- IBD Unit, Madrid, Spain, ⁴Spanish confederation of associations of patients with Crohn′s disease and Ulcerative colitis ACCU, accu, Madrid, Spain, ⁵Merck Sharp & Dohme of Spain, Medical Affairs Department, Madrid, Spain

¹King’s College London, Psychological Medicine, London, UK, ²King’s College London, Health Psychology Section, London, UK, ³King’s College London, Florence Nightingale Faculty of Nursing-Midwifery and Palliative Care, London, UK

¹Mukogawa Women’s University- Graduate School of Nursing, Department of nursing, Nishinomiya, Japan, ²Aoyama Clinic GI endoscopy & IBD, Gastroenterology, Kobe, Japan, ³Mukogawa Women’s University, Department of nursing, Nishinomiya, Japan

King’s College London, Adult Nursing, London, UK

Dorset County Hospital, inflammatory bowel disease, Dorchester, UK

Institute of Technology Tralee, Nursing, Kerry, Ireland