[1] Inst Canc Res, Sutton, Surrey, England
[2] Cantonal Hosp St Gallen, St Gallen, Switzerland
[3] Duke Univ, Duke Canc Inst, Durham, NC USA
[4] BC Canc Agcy, Vancouver, BC, Canada
[5] Imperial Coll London, London, England
[6] Queens Univ Belfast, Belfast, Antrim, North Ireland
[7] Univ Twente, Twente, Netherlands
[8] Univ Antwerp, Oncol Res Ctr, Campus Sint Augustinus, Antwerp, Belgium
[9] Univ Med Ctr Utrecht, Utrecht, Netherlands
[10] Servicio Oncologia Medica Hosp Univ La Fe, Valencia, Spain
[11] Johns Hopkins Univ Sch Med, James Buchanan Brady Urol Inst, Baltimore, MD USA
[12] Radboud Univ Nijmegen Med Ctr, Nijmegen, Netherlands
[13] Spanish Natl Canc Res Ctr, Madrid, Spain
[14] Mem Sloan Kettering Canc Ctr, New York, NY USA
[15] Prostate Canc Fdn, Santa Monica, CA USA
[16] Heinrich Heine Univ Dusseldorf, Univ Hosp, Dusseldorf, Germany
[17] Univ Twente, Enschede, Netherlands
[18] Inst Canc Res & Royal Marsden Hosp, London, England