1. Liver Unit, Hospital Clinic; University of Barcelona; Barcelona Spain
2. Institut d'Investigacions Biomèdiques August-Pi-Sunyer (IDIBAPS); Barcelona Spain
3. Centro de Investigación Biomédica en Red de Enfermedades Hepáticas y Digestivas (CIBEREHED); Barcelona Spain
4. Cirrhosis Care Clinic, Cirrhosis Care, Liver Unit, Division of Gastroenterology; University of Alberta; Edmonton Canada
5. Infectious Disease Department, Hospital Clínic; University of Barcelona; Barcelona Spain
6. Section of Digestive Diseases; Yale University School of Medicine; New Haven CT
7. Section of Digestive Diseases; VA-CT Healthcare System; West Haven CT