1. Unit for Urology, Helsingborg Hospital, Helsingborg, Sweden
2. Department of Oncology, Umeå University Hospital, Umeå, Sweden
3. Department of Urology, Helsingborg Hospital, SE-251 87 Helsingborg, Sweden. Tel: +46 42 101490; Fax: +46 42 242731; E-mail: ola.bratt@helsingborgslasarett.se