1. Medicity Research Laboratory and Department of Medical Biochemistry and Molecular Biology, University of Turku, FIN-20520 Turku, Finland
2. Turku Postgraduate School of Biomedical Sciences, University of Turku, FIN-20520 Turku, Finland
3. Department of Pathology, University of Turku, FIN-20520 Turku, Finland
4. Laboratory of Cancer Biology, Institute of Medical Technology, Tampere University and Tampere University Hospital, FIN-33101 Tampere, Finland
5. Department of Anatomy, University of California, San Francisco, San Francisco, CA 94143
6. Department of Oncology, Turku University Central Hospital, FIN-20520 Turku, Finland