1 Department of Cellular and Molecular Medicine and Novo Nordisk Foundation Center for Stem Cell Research, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark.
2 Biomedical Center, University of Iceland, Reykjavik, Iceland.
3 Division of Translational Cancer Research, Department of Laboratory Medicine, Lund University, Lund, Sweden.
4 Department of Pathology, Rigshospitalet, Copenhagen University Hospital, Copenhagen, Denmark.
5 Section for Cell Biology and Physiology, Department of Biology, Faculty of Science, University of Copenhagen, Copenhagen, Denmark.
6 Department of Cellular and Molecular Medicine and Novo Nordisk Foundation Center for Stem Cell Research, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark. r.villadsen@sund.ku.dk.