1. Section of Bone Marrow Transplantation and Leukemia Program, Division of Oncology, Department of Medicine, Washington University School of Medicine, St. Louis, MO;
2. Clinical Research Division, Fred Hutchinson Cancer Research Center, Seattle, WA;
3. Division of Hematology, Department of Medicine, and
4. Department of Epidemiology, University of Washington, Seattle, WA;
5. Leukemia Service, Department of Medicine, Memorial Sloan Kettering Cancer Center, Weill Cornell Medical College, New York, NY; and
6. Division of Medical Oncology, Department of Medicine, University of Washington, Seattle, WA