[1] Harvard Univ, Brigham & Womens Hosp, Div Urol, Sch Med, Boston, MA 02115 USA
[2] City Hope Comprehens Canc Ctr, Div Urol Oncol, Dept Urol, Duarte, CA 91010 USA
[3] Harvard Univ, Lank Ctr Genitourinary Oncol, Dana Farber Canc Inst, Sch Med, Boston, MA 02115 USA
[4] City Hope Comprehens Canc Ctr, Div Genitourinary Malignancies, Dept Med Oncol & Expt Therapeut, Duarte, CA 91010 USA