1. Human Oncology and Pathogenesis Program,
2. Gerstner Sloan-Kettering Graduate School in Biomedical Sciences, and
3. Department of Medicine, Memorial Sloan-Kettering Cancer Center, New York, NY;
4. Department of Medical Oncology, Dana-Farber Cancer Institute, Boston, MA; and
5. Molecular Pharmacology and Chemistry Program and
6. Leukemia Service, Memorial Sloan-Kettering Cancer Center, New York, NY