1. Experimental and Molecular Pathology, Institute of Pathology, Ludwig-Maximilians University of Munich, D-80337 Munich, Germany
2. Institute for Research in Biomedicine, Barcelona Science Park, 08028 Barcelona, Spain
3. Institute of Medical Microbiology, Immunology and Hygiene, Technical University of Munich, D-81675 Munich, Germany
4. Department of Biology, Friedrich-Alexander University of Erlangen-Nuremberg, D-91058 Erlangen, Germany
5. Institute of Clinical Molecular Biology and Tumor Genetics, Helmholtz Center Munich, D-81377 Munich, Germany
6. German Cancer Consortium (DKTK), D-69120 Heidelberg, Germany
7. German Cancer Research Center (DKFZ), D-69120 Heidelberg, Germany