[1] La Jolla Inst Allergy & Immunol, Div Cellular Immunol, San Diego, CA 92121 USA
[2] Mt Sinai Sch Med, Dept Human Genet, New York, NY 10029 USA
[3] Mem Sloan Kettering Canc Ctr, Dept Radiat Oncol, New York, NY 10021 USA
[4] Mem Sloan Kettering Canc Ctr, Lab Signal Transduct, New York, NY 10021 USA