[1] Univ Dusseldorf, Dept Urol, D-40225 Dusseldorf, Germany
[2] Rudolfstiftung, Dept Urol, Vienna, Austria
[3] Fundacio Puigvert, Dept Pathol, Barcelona, Spain
[4] Univ Kliniken Eppendorf, Dept Med Oncol, Hamburg, Germany
[5] Karolinska Univ Hosp, Dept Oncol, Stockholm, Sweden
[6] Univ Paris 11, Dept Med, Villejuif, France
[7] Royal Marsden NHS Trust, Acad Unit Radiotherapy & Oncol, Sutton, Surrey, England
[8] Inst Canc Res, Sutton, Surrey, England
[9] Univ Amsterdam, Amsterdam Med Ctr, Dept Urol, Amsterdam, Netherlands