[1] Mem Sloan Kettering Canc Ctr, Leukemia Serv, Dept Med, New York, NY USA
[2] Mem Sloan Kettering Canc Ctr, Dept Epidemiol & Biostat, New York, NY USA
[3] Mem Sloan Kettering Canc Ctr, Dept Biostat & Epidemiol, New York, NY USA
[4] Mem Sloan Kettering Canc Ctr, Ctr Hematol Malignancies, New York, NY USA
[5] Mem Sloan Kettering Canc Ctr, Dept Med, New York, NY USA
[6] Mem Sloan Kettering Canc Ctr, New York, NY USA