[1] UPMC Hillman Canc Ctr, Pittsburgh, PA USA
[2] Catalan Canc Inst, Barcelona, Spain
[3] UC Irvine Med Ctr, Orange, CA USA
[4] Hosp Gen Univ Gregorio Maranon, Madrid, Spain
[5] St Vincents Hosp Sydney, Sydney, NSW, Australia
[6] Rutgers Canc Inst New Jersey, New Brunswick, NJ USA
[7] Carolina Urol Res Ctr, Myrtle Beach, SC USA
[8] Merck & Co Inc, Kenilworth, NJ USA
[9] Univ Washington, Seattle, WA 98195 USA