1. Department of Pathology Oslo University Hospital Oslo Norway
2. Division of Haematology and Immunology Institute of Medical Research at St James’s University of Leeds Leeds UK
3. Laboratory for Molecular Cancer Biology VIB Center for Cancer Biology KU Leuven Leuven Belgium
4. Department of Oncology KU Leuven Leuven Belgium
5. Department of Tumor Biology Institute for Cancer Research Oslo University Hospital Oslo Norway
6. The Wistar Institute Philadelphia PA USA