1. Department of Surgery, Großhadern Hospital, LM University of Munich, Munich, Germany
2. Human Tissue and Cell Research Foundation, University of Regensburg Hospital, Regensburg, Germany
3. Boehringer Ingelheim Pharma GmbH & Co KG, Biberach an der Riß, Germany
4. Institute of Philosophy, Technical University of Dresden, Dresden, Germany
5. Centre for Liver Cell Research, University of Regensburg Hospital, Regensburg, Germany