[1] Finnish Canc Registry, FIN-00170 Helsinki, Finland
[2] Univ Tampere, Tampere Sch Publ Hlth, FIN-33101 Tampere, Finland
[3] Univ Helsinki Hosp, Dept Clin Chem, Helsinki, Finland
[4] Univ Helsinki Hosp, Dept Urol, Helsinki, Finland
[5] Univ Helsinki Hosp, Dept Surg, Helsinki, Finland
[6] Tampere Univ Hosp, Dept Urol, Tampere, Finland
[7] Jorvi Hosp, Dept Surg, SF-02740 Espoo, Finland