1. Section of Urology, Department of Surgery, The Gade Institute, Haukeland University Hospital, Bergen, Norway
2. Department of Pathology, The Gade Institute, Haukeland University Hospital, Bergen, Norway
3. Clinic of PathologyCentral Hospital Karlstad, Karlstad, Sweden
4. Clinics of Surgery and Urology, Central Hospital Karlstad, Karlstad, Sweden
5. Centre for Clinical Research, Haukeland University Hospital, Bergen, Norway