Elisa Pose1, Pere Ginès2. 1. Liver Unit, Hospital Clínic, Faculty of Medicine and Health Sciences, University of Barcelona, 08036 Barcelona, Catalonia, Spain; Institut d'Investigacions Biomèdiques August Pi i Sunyer, Barcelona, Catalonia, Spain; Centro de Investigación Biomédica en Red de Enfermedades Hepáticas y Digestivas, Barcelona, Spain; Faculty of Medicine and Health Sciences, University of Barcelona, Barcelona, Catalonia, Spain. 2. Liver Unit, Hospital Clínic, Faculty of Medicine and Health Sciences, University of Barcelona, 08036 Barcelona, Catalonia, Spain; Institut d'Investigacions Biomèdiques August Pi i Sunyer, Barcelona, Catalonia, Spain; Centro de Investigación Biomédica en Red de Enfermedades Hepáticas y Digestivas, Barcelona, Spain; Faculty of Medicine and Health Sciences, University of Barcelona, Barcelona, Catalonia, Spain. Electronic address: pgines@clinic.cat.