1. Gastroenterology Unit Centro de Investigación Biomédica en Red de Enfermedades Hepáticas y Digestivas (CIBEREHD) Instituto de Investigación Sanitaria Princesa (IIS‐IP) Hospital Universitario de La Princesa Universidad Autónoma de Madrid Madrid Spain
2. Digestive Unit Agencia Sanitaria Costa del Sol Marbella Spain
3. Red de Investigación en Servicios de Salud en Enfermedades Crónicas (REDISSEC) Málaga Spain
4. Gastroenterology Unit AM DC Rogaska Rogaska Slatina Slovenia
5. Gastroenterology Unit Hospital Universitario Central de Asturias Oviedo Spain
6. Hospital San Pedro de Alcántara Cáceres Spain
7. Hospital de Tomelloso (Ciudad Real) Sevilla Spain
8. Hospital de Valme Sevilla Spain
9. Aberdeen Royal Infirmary Aberdeen UK
10. Hospital Río Hortega Valladolid Spain
11. Department of Gastroenterology Centro de Investigación Biomédica en Red de Enfermedades Hepáticas y Digestivas (CIBERehd) Hospital Donostia/Instituto Biodonostia Universidad del País Vasco (UPV/EHU) Donosti Spain
12. Hospital Universitari i Politècnic La Fe Valencia Spain
13. Portuguese Oncology Institute Coimbra Portugal
14. Diagnostic Centre Bled Bled Slovenia
15. Hospital General Universitario de Valencia Valencia Spain
16. Hospital Clínico Universitario Valladolid Valladolid Spain
17. Department of Pancreatobiliary and Upper GI Diseases Moscow Clinical Scientific Center A.I. Yevdokimov Moscow State University of Medicine and Dentistry Moscow Russia
18. Hospital Universitari de Bellvitge L'Hospitalet de Llobregat Spain
19. Consorci Sanitari Terrassa Terrassa Spain
20. HM Sanchinarro Madrid Spain
21. Hospital Clínico Universitario Lozano Blesa Zaragoza Spain
22. Department of Gastroenterology Lithuanian University of Health Sciences Kaunas Lithuania
23. Hospital de San Jorge Huesca Spain
24. Gastroenterology Unit Ferencváros Policlinic Budapest Hungary
25. Medical Department Central Hospital Ostfold Fredrikstad Norway
26. Hospital Quiron Marbella Marbella Spain
27. Gastroenterology Unit University of Leeds Leeds UK
28. Gastronterology Area Fondazione Policlinico Universitario A. Gemelli Rome Italy
29. Centro Hospitalar do Porto Institute of Biomedical Sciences Abel Salazar University of Porto and CINTESIS, University of Porto Porto Portugal
30. Department of Gastroenterology Rabin Medical Center Tel Aviv University Petach Tikva Israel
31. Department of Gastroenterology School of Medicine University Hospital of Split, University of Split Split Croatia
32. Faculty of Medicine Institute of Clinical and Preventive Medicine University of Latvia Riga Latvia
33. Gastroenterology Unit Henry Dunant Hospital Athens Greece
34. Department of Medical Microbiology Medical University of Sofia Sofia Bulgaria
35. Internal Diseases Department No. 1 National Medical University named after O.O. Bogomolets Kyiv Ukraine
36. Department of Gastroenterology, Hepatology and Infectious Diseases Otto‐von‐Guericke University Hospital Magdeburg Germany
37. Department of Medicine Zealand University Hospital Copenhagen University Copenhagen Denmark
38. Gastroenterology Unit Timisoara Hospital Timisoara Romania
39. Hacettepe University Faculty of Medicine Ankara Turkey
40. Department of Gastroenterology, Hepatology & Nutrition CHU Charleroi Charleroi Belgium
41. Gastroenterology Unit Medical Centre for Postgraduate Education Warsaw Poland
42. Department of Gastroenterology and Internal Medicine and Department of Surgery University Hospital Brno Faculty of Medicine, Masaryk University Brno Czech Republic
43. Gastroenterology and Hepatology Erasmus MC University Rotterdam The Netherlands
44. Medical Department Clinical Center of Serbia Clinic for Gastroenterology and Hepatology University of Belgrade Belgrade Serbia
45. Laboratoire de Bactériologie Hôpital Pellegrin Bordeaux Cedex France
46. Faculty of Health Sciences Trinity College Dublin Dublin Ireland