1 Department of Tumor Biology, Institute of Cancer Research, The Norwegian Radium Hospital, Oslo, Norway. Electronic address: mev.dominguez.valentin@rr-research.no.
2 Institute of Medical Genetics, Division of Cancer and Genetics, Cardiff University School of Medicine, Heath Park, Cardiff, United Kingdom. Electronic address: sampson@cardiff.ac.uk.
3 Applied Tumor Genomic Research Program, University of Helsinki, Helsinki, Finland. Electronic address: toni.seppala@fimnet.fi.
4 Department of Tumor Biology, Institute of Cancer Research, The Norwegian Radium Hospital, Oslo, Norway.