Affiliation: | 1. Wellcome Trust‐Medical Research Council Cambridge Stem Cell Institute, University of Cambridge, Cambridge, UK;2. Division of Stem Cells and Cancer, Deutsches Krebsforschungszentrum (DKFZ), Heidelberg, Germany;3. Heidelberg Institute for Stem Cell Technology and Experimental Medicine (HI‐STEM gGmbH), Heidelberg, Germany;4. Department of Biochemistry, University of Cambridge, Cambridge, UK |