1. Skin Cancer Unit, German Cancer Research Center (DKFZ), Heidelberg, Germany
2. Department of Dermatology, Venereology and Allergology, University Medical Center Mannheim, University of Heidelberg, Mannheim, Germany
3. Division of Stem Cells and Cancer, German Cancer Research Center (DKFZ), Heidelberg, Germany
4. Research Group Hematopoietic and Leukemic Stem Cells, Heidelberg Institute for Stem Cell Technology and Experimental Medicine (HI-STEM gGmbH), Heidelberg, Germany
5. Faculty of Biosciences, Ruprecht-Karl University of Heidelberg, Heidelberg, Germany
6. Institute of Transfusion Medicine and Immunology, Medical Faculty Mannheim, Heidelberg University, Mannheim, Germany
7. Department of Diagnostics, Institute Springe, Springe, Germany