1 Biology group, Institute for Laser Technologies in Medicine and Metrology (ILM) at the University of Ulm, Helmholtzstr. 12, 89081, Ulm, Germany.
2 Dept. of Urology, Ulm University Hospital, Albert-Einstein-Allee 23, 89081, Ulm, Germany.
3 Cancer Genome Research, German Cancer Research Centre (DKFZ) and German Cancer Consortium (DKTK), Im Neuenheimer Feld 280, 69120, Heidelberg, Germany.
4 Biology group, Institute for Laser Technologies in Medicine and Metrology (ILM) at the University of Ulm, Helmholtzstr. 12, 89081, Ulm, Germany. rainer.wittig@ilm-ulm.de.