[1] Univ Texas MD Anderson Canc Ctr, Dept Immunol, Houston, TX 77030 USA
[2] Univ Texas MD Anderson Canc Ctr, Dept Genitourinary Med Oncol, Houston, TX 77030 USA
[3] UCL, Dept Res Haematol, Canc Immunol Unit, Inst Canc, London WC1E 6DD, England
[4] Mem Sloan Kettering Canc Ctr, Ludwig Ctr Canc Immunotherapy, New York, NY 10065 USA
[5] Mem Sloan Kettering Canc Ctr, Howard Hughes Med Inst, New York, NY 10065 USA
[6] Mem Sloan Kettering Canc Ctr, Immunol Program, New York, NY 10065 USA