1. Department of Medicine I; University Medical Center Hamburg-Eppendorf; Hamburg Germany
2. Outpatient Clinic for Liver Transplantation; University Medical Center Hamburg-Eppendorf; Hamburg Germany
3. Department of Medical Microbiology, Virology and Hygiene; University Medical Center Hamburg-Eppendorf; Hamburg Germany
4. Gastroenterology, Hepatology and Endocrinology; Hannover Medical School; Hannover Germany
5. Department of Transfusion Medicine; University Medical Center Hamburg-Eppendorf; Hamburg Germany
6. Clinical Institute of Pathology; Medical University of Vienna; Vienna Austria
7. Department of Hepatobiliary and Transplant Surgery; University Medical Center Hamburg-Eppendorf; Hamburg Germany