Luca Viganò1, Matteo Maria Cimino, René Adam, Guido Torzilli. 1. Department of Surgery, Division of Hepatobiliary & General Surgery, Humanitas University, School of Medicine, Humanitas Research Hospital-IRCCS, Rozzano, Milan, Italy AP-HP Hôpital Paul Brousse, Centre Hépato-Biliaire, University of Paris, Villejuif, France Department of Surgery, Division of Hepatobiliary & General Surgery, Humanitas University, School of Medicine, Humanitas Research Hospital-IRCCS, Rozzano, Milan, Italy.