1. Institute of Gastroenterology and Hepatology, Emek Medical Center, Afula, Israel
2. Rappaport Faculty of Medicine, Technion-Israel Institute of Technology, Haifa, Israel
3. Department of Gastroenterology, Glasgow Royal Infirmary, Glasgow, UK
4. Sorbonne University, Endoscopic Unit, Saint Antoine Hospital Assistance Publique Hopitaux de Paris, Paris, France
5. Department of Surgery, Prince of Wales Hospital, The Chinese University of Hong Kong, Hong Kong SAR, China
6. Digestive Disease Services, University Clinic Hospital, University of Zaragoza, IIS Aragón (CIBERehd), Spain
7. Department of Gastroenterology, Odense University Hospital, Odense, Denmark
8. Department of Gastroenterology, Valduce Hospital, Como, Italy
9. Hepatogastroenterology Unit, Second Department of Internal Medicine – Propaedeutic, Medical School, National and Kapodistrian University of Athens, Attikon University General Hospital, Athens, Greece
10. Gastroenterology Department, Hospital da Senhora da Oliveira, Guimarães, Portugal
11. School of Medicine, University of Minho, Braga/Guimarães, Portugal
12. ICVS/3B’s–PT Government Associate Laboratory, Braga/Guimarães, Portugal
13. Center for Research in Health Technologies and Information Systems (CINTESIS), Faculty of Medicine, Porto, Portugal
14. Gastroenterology Department, Portuguese Oncology Institute of Porto, Portugal
15. Medizinische Klinik 3, Universitätsklinikum Augsburg, Augsburg, Germany.
16. Red Cross Hospital Beverwijk, Beverwijk, The Netherlands
17. Gastroenterological Surgery, University of Helsinki and Helsinki University Hospital, Helsinki, Finland
18. Gastroenterology Unit, Hospital Costa del Sol, Marbella, Spain
19. Gastroenterology Department, Vithas Xanit International Hospital, Benalmadena, Spain
20. Diagnostic Imaging and Nuclear Medicine Institute, Emek Medical Center, Afula, Israel
21. Department of Gastroenterology and Hepatology, Leiden University Medical Center, Leiden, The Netherlands