Jordi Gracia-Sancho1, Wim Laleman2. 1. Barcelona Hepatic Hemodynamic Laboratory Institut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), Institute and Centro de Investigación Biomédica en Red de Enfermedades Hepáticas y Digestivas (CIBEREHD) Barcelona Spain. 2. Department of Gastroenterology and Hepatology Section of Liver and Biliopancreatic Disorders, University Hospitals Leuven KU Leuven Leuven Belgium.