1. Liver Unit; Hospital Clínic; Barcelona Spain
2. Institut d'Investigacions Biomèdiques August-Pi-Sunyer, University of Barcelona, Centro de Investigación Biomédica en Red de Enfermedades Hepáticas y Digestivas; Barcelona Spain
3. Liver Unit; Department of Internal Medicine; Vall d'Hebron Institut de Recerca; Barcelona Spain
4. Division of Gastroenterology; Department of Medicine; University of Alberta; Edmonton Alberta Canada
5. Servicio de Gastroenterología; Hospital Domingo Luciani; Caracas Venezuela
6. Hepatic Hemodynamic Laboratory; Hospital Clinic; Barcelona Spain
7. INSERM U995; Université Lille Nord de France; Lille France
8. Service de Maladies de l'Apareil Digestif et de la Nutrition; Hôpital Claude Huriez; Lille France
9. Section of Digestive Diseases; Yale University; New Haven CT
10. Division of Gastroenterology and Hepatology; Departments of Medicine and Nutrition; University of North Carolina at Chapel Hill; Chapel Hill NC