1. Cancer Research and Translational Medicine Research Unit, University of Oulu, Oulu, Finland
2. Medical Research Center Oulu, Oulu University Hospital and University of Oulu, Oulu, Finland
3. Department of Pathology, Oulu University Hospital, Oulu, Finland
4. Infrastructure for Population Studies, Faculty of Medicine, University of Oulu, Oulu, Finland
5. Helsinki University Hospital Comprehensive Cancer Center, University of Helsinki and Helsinki University Hospital, Helsinki, Finland