1. Department of General, Visceral, and Transplantation Surgery, University of Heidelberg , Heidelberg , Germany
2. Liver Cancer Center Heidelberg (LCCH), University of Heidelberg , Heidelberg , Germany
3. Department of Interventional Radiology, University of Heidelberg , Heidelberg , Germany
4. Institute of Pathology, University of Heidelberg , Heidelberg , Germany
5. Department of Internal Medicine IV, University of Heidelberg , Heidelberg , Germany