1. Heidelberg Institute for Stem Cell Technology and Experimental Medicine (HI‐STEM gGmbH) Im Neuenheimer Feld 280, D‐69120 Heidelberg Germany
2. Division of Stem Cells and CancerGerman Cancer Research Center (DKFZ), and DKFZ‐ZMBH Alliance Im Neuenheimer Feld 280, D‐69120 Heidelberg Germany
3. German Cancer Consortium (DKTK) D‐69120 Heidelberg Germany
4. German Cancer Research Center (DKFZ)Core Facility Imaging and Cytometry Im Neuenheimer Feld 280, D‐69120 Heidelberg Germany