1. Faculty of Medicine and Health Sciences University of Barcelona Barcelona Spain
2. Institut d’Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS) Barcelona Spain
3. Centro de Investigación Biomédica en Red de Enfermedades Hepáticas y Digestivas Barcelona Spain
4. Hospital Universitari Vall d'Hebron Barcelona Spain
5. Royal Free Hospital London United Kingdom
6. San Giovanni Battista Hospital Torino Italy
7. Padova University Hospital Padova Italy
8. Bologna University Hospital Bologna Italy
9. Beajuon Hospital Clichy France
10. Department of Internal Medicine I University Clinic Frankfurt Frankfurt am Main Germany
11. Academic Medical Centre Amsterdam Netherlands
12. Division of Gastroenterology and Hepatology Mayo Clinic Rochester MN
13. Department of Nursing Mayo Clinic Rochester MN