1. Division of Gastroenterology and Hepatology, Department of Internal Medicine III, Medical University of Vienna, Vienna, Austria
2. Vienna HIV & Liver Study Group, Medical University of Vienna, Vienna, Austria
3. Department of Dermatology, Medical University of Vienna, Vienna, Austria
4. Department of Internal Medicine II, Klinik Donaustadt, Wiener Gesundheitsverbund (WiGeV) der Stadt Wien, Vienna, Austria
5. Department of Internal Medicine IV, Klinik Ottakring, Wiener Gesundheitsverbund (WiGeV) der Stadt Wien, Vienna, Austria
6. Institute of Immunology, Center for Pathophysiology, Infectiology and Immunology, Medical University Vienna, Vienna, Austria
7. Department of Internal Medicine and Gastroenterology, Klinikum Klagenfurt am Woerthersee, Klagenfurt, Austria