1. Department of Gastroenterology, Hôpital Saint-Louis, APHP, Université Paris 7 Denis Diderot, France
2. Equipe Avenir INSERM U940, France
3. Venizeleion General Hospital, Heraklion, Crete, Greece
4. Department of Gastroenterology, CHU Liège, Université de Liège, Belgium
5. Division of Gastroenterology, University Hospitals Leuven, Leuven, Belgium
6. Sheba Medical Center, Sackler School of Medicine, Tel-Aviv University, Israel
7. Department of Gastroenterology, Rambam Health Care Campus, Rappoport School of Medicine, Technion, Israel Institute of Technology, Haifa, Israel
8. Department of Gastroenterology and Hepatology, Erasmus MC University Medical Center, Rotterdam, The Netherlands
9. H Hart Hospital Roeselare, Belgium
10. Hepato-Gastroenterology Unit, 1st Department of Internal Medicine, University Hospital of Ioannina, Greece
11. Department of Gastroenterology, Herlev Hospital, Copenhagen, Denmark
12. Hospital Israelita Albert Einstein, Sao Paulo, Brazil
13. Division of Gastroenterology, Istituto Clinico Humanitas-IRCCS in Gastroenterology, Rozzano, Italy
14. INSERM UMR S 872, Centre de Recherche des Cordeliers, Université Pierre et Marie Curie-Paris 6, Paris, France
15. Université Paris — Descartes, Paris, France