1. CIBERehd; Instituto de Salud Carlos III; Madrid Spain
2. Hepatic Hemodynamic Laboratory, Liver Unit, Hospital Clinic, IDIBAPS; University of Barcelona; Barcelona Spain
3. Swiss Liver Center, Hepatology, University Clinic for Visceral Surgery and Medicine, Inselspital; University of Bern; Bern Switzerland
4. Hospital Universitario Ramón y Cajal; Madrid Spain
5. Hospital Santa Creu i Sant Pau; Barcelona Spain
6. Hospital Universitari Vall d'Hebron; Barcelona Spain
7. Hospital Puerta de Hierro; Madrid Spain
8. Hospital General Universitario Gregorio Marañon; Madrid Spain