1. Department of Internal Medicine IV; University Hospital of Heidelberg; Heidelberg Germany
2. Division of Cancer Medicine, Surgery and Transplantation; Department of Transplantation Medicine; Norwegian PSC Research Center; Oslo University Hospital; Rikshospitalet; Oslo Norway
3. Research Institute of Internal Medicine; Oslo University Hospital; Rikshospitalet; Oslo Norway
4. Institute of Clinical Medicine; University of Oslo; Oslo Norway
5. Department of Infectious Diseases, Medical Microbiology and Hygiene; University of Heidelberg; Heidelberg Germany
6. Institute of Pathology; University Hospital of Heidelberg; Heidelberg Germany