1. Department for Internal Medicine IV, Klinik Ottakring , 1160 Vienna , Austria
2. Vienna HIV & Liver Study Group , Department of Medicine III, , 1090 Vienna , Austria
3. Medical University of Vienna , Department of Medicine III, , 1090 Vienna , Austria
4. Division of Gastroenterology and Hepatology , Department of Medicine III, , 1090 Vienna , Austria
5. Department of Biomedical Imaging and Image-Guided Therapy, Medical University of Vienna , 1090 Vienna , Austria
6. Division of Infectious Diseases and Tropical Medicine , Department of Medicine I, , 1090 Vienna , Austria
7. Medical University of Vienna , Department of Medicine I, , 1090 Vienna , Austria
8. Division of Visceral Surgery , Department of Surgery, , 1090 Vienna , Austria
9. Medical University of Vienna , Department of Surgery, , 1090 Vienna , Austria
10. Department for Diagnostic and Interventional Radiology, Klinik Ottakring , 1160 Vienna , Austria
11. Department of Dermatology, Medical University of Vienna , Vienna , Austria
12. Division for Medical Parasitology, Department for Specific Prophylaxis and Tropical Medicine, Center for Pathophysiology, Infectiology and Immunology, Medical University of Vienna , 1090 Vienna , Austria
13. Department of Gastroenterology and Hepatology , Sigmund Freud University, 1020 Vienna , Austria