1. Department of Nuclear Medicine Hannover Medical School Hannover Germany
2. University Medical Center Hamburg‐Eppendorf Institute of Tumor Biology Hamburg Germany
3. Department of Anatomy and Experimental Morphology University Medical Center Hamburg‐Eppendorf Hamburg Germany
4. Medical School Berlin Berlin Germany
5. Hannover Medical School Institute of Pathology Hannover Germany
6. University Medical Center Hamburg‐Eppendorf Institute of Transfusion Medicine Hamburg Germany