1. Departments of Medicine (R.L., J.E.B., M.B., R.M., D.S., N.R., J.A.K., J.A.F.), Memorial Sloan Kettering Cancer Center, New York, New York 10021
2. Department of Human Oncology and Pathogenesis Programs (D.S., J.A.F.), Memorial Sloan Kettering Cancer Center, New York, New York 10021
3. Department of Pediatrics (C.A.P.), Memorial Sloan Kettering Cancer Center, New York, New York 10021
4. Department of Molecular Pharmacology (N.R.), Memorial Sloan Kettering Cancer Center, New York, New York 10021