1 Barcelona Hepatic Hemodynamic Laboratory Liver Unit Hospital Clinic-Institut d'Investigacions Biomèdiques August Pi I i Sunyer, IMDIM, University of Barcelona, Barcelona, Spain.
2 Centro de Investigación Biomédica Red de Enfermedades Hepáticas y Digestivas, Spain.
3 Department of Hepato-Gastroenterology, Purpan Hospital, CHU Toulouse, France.
4 University of Paul Sabatier Toulouse, Toulouse, France.