1. Institute of Transfusion Medicine and Transplant Engineering, Hannover Medical School, Carl-Neuberg-Str. 1, 30625 Hanover, Germany
2. Transregional Collaborative Research Centre 127, Hannover Medical School, Carl-Neuberg-Str. 1, 30625 Hanover, Germany
3. Transplantation Laboratory, Clinic for General, Visceral and Transplantation-Surgery, Hannover Medical School, Carl-Neuberg-Str. 1, 30625 Hanover, Germany
4. Institute of Farm Animal Genetics, Höltystr. 10, 31535 Neustadt am Rübenberge, Germany