1. Division of Gastroenterology and Hepatology Department of Internal Medicine III Medical University of Vienna Vienna Austria
2. Vienna Hepatic Hemodynamic Lab Medical University of Vienna Vienna Austria
3. Christian Doppler Laboratory for Portal Hypertension and Liver Fibrosis Medical University of Vienna Vienna Austria
4. Department of Laboratory Medicine Medical University of Vienna Vienna Austria
5. Surgical Research Laboratory and Section of Hepatobiliary Surgery and Liver Transplantation Department of Surgery University of Groningen, University Medical Center Groningen Groningen the Netherlands