1. The Lundberg Laboratory for Cancer Research, Sahlgrenska University Hospital, Göteborg, Sweden
2. Department of Surgery, Sahlgrenska University Hospital, Göteborg, Sweden
3. Department of Radiation Physics, Sahlgrenska University Hospital, Göteborg, Sweden
4. Department of Medical Sciences, Clinical Chemistry, University Hospital, Uppsala, Sweden
5. Department of Pathology, Sahlgrenska University Hospital, Göteborg, Sweden