1. University of Bologna University Hospital S. Orsola‐Malpighi di Bologna Bologna Italy
2. Hospital Vall d’Hebron Universitat Autònoma de Barcelona CIEREHD Barcelona Catalonia Spain
3. Hospital Clinic of Barcelona University of Barcelona IDIBAPS CIBEReHD Barcelona Catalonia Spain
4. Division of Gastroenterology and Hepatology Città della Salute e della Scienza Hospital University of Torino Turin Italy
5. Amsterdam University Medical Centers Amsterdam the Netherlands
6. Goethe‐University ‐ Frankfurt am Main Frankfurt am Main Germany
7. EF‐CLIF Barcelona Catalonia Spain
8. University Hospital of Padova Padova Italy
9. Royal Free Hospital University College London London United Kingdom
10. Hospital Beaujon APHP Paris France
11. Department of Gastroenterology and Hepatology Odense University Hospital Odense Denmark
12. Institute of Clinical Research University of Southern Denmark Odense Denmark
13. Virginia Commonwealth University Medical Center Richmond VA