1. Urological Unit, Second Department of Surgery, Helsinki University Hospital, Finland
2. Department of Urology, Karolinska Hospital, Stockholm, Sweden
3. Radiumhemmet, Stockholm, Sweden
4. Det Norske Radiumhospital, Oslo, Norway
5. Department of Urology, University of Copenhagen, Herlev, Denmark
6. Department of Surgery, Växjö Hospital, Sweden
7. Department of Surgery, Halmstad Hospital, Sweden
8. Department of Surgery and Urology, Ersta Hospital, Stockholm
9. Medical Research Department, KabiVitrum AB, Stockholm
10. Department of Urology, Västerås, Sweden