1. Academic Department of Gastroenterology and Hepatology, Sheffield Teaching Hospitals NHS Trust, Sheffield, UK
2. Clinic for Internal Medicine, Bethesda Krankenhaus Bergedorf, Hamburg, Germany
3. Gastroenterology Department, University of Navarra Clinic, Pamplona, Spain
4. Royal Free Unit for Endoscopy, The Royal Free Hospital and University College London (UCL) Institute for Liver and Digestive Health Hampstead Campus, London, UK
5. Endoscopy Unit, Hôpital Saint-Antoine, Assistance Publique-Hôpitaux de Paris and Sorbonne Université, Paris, France
6. Department of Gastroenterology and Hepatology, Academic Medical Centre, Amsterdam, The Netherlands
7. Translational Gastroenterology Unit, Nuffield Department of Medicine, Experimental Medicine Division, John Radcliffe Hospital, University of Oxford, Oxford, UK
8. Oxford NIHR Biomedical Research Centre, University of Oxford, Oxford, UK
9. University College London Hospitals, London, UK
10. Gastroenterology Department, Portuguese Oncology Institute of Porto, Porto, Portugal
11. Center for Research in Health Technologies and Information Systems (CINTESIS), Faculty of Medicine, University of Porto, Porto, Portugal
12. Surgery and Physiology Department, Faculty of Medicine, University of Porto, Porto, Portugal
13. Department of Gastroenterology, Hepato-pancreatology and Digestive Oncology Erasme University Hospital, Brussels, Belgium
14. Gastroenterology Division, Hôpital Edouard Herriot, Lyon, France
15. Department of Gastroenterology and Hepatology, Catholic University of Leuven (KUL), TARGID, University Hospitals Leuven, Leuven, Belgium