1. Internal Medicine Unit for the Treatment of Severe Organ Failure IRCCS Azienda Ospedaliero‐Universitaria di Bologna Bologna Italy
2. Vienna Hepatic Hemodynamic Lab, Division of Gastroenterology and Hepatology, Department of Medicine III Medical University of Vienna Vienna Austria
3. Christian Doppler Laboratory for Portal Hypertension and Liver Fibrosis Medical University of Vienna Vienna Austria
4. Fondazione IRCCS Ca' Granda Ospedale Maggiore Policlinico Angelo Bianchi Bonomi Hemophilia and Thrombosis Center Milan Italy
5. Department of Pathophysiology and Transplantation Università degli Studi di Milano Milan Italy