1. Clinical Research Division, Fred Hutchinson Cancer Research Center, Seattle, WA;
2. Division of Medical Oncology, Department of Medicine, University of Washington School of Medicine, Seattle, WA;
3. City of Hope School of Medicine, Duarte, CA;
4. Center for Hematologic Malignancies, Knight Cancer Institute, and
5. Division of Hematology and Medical Oncology, Oregon Health and Science University Knight Cancer Institute, Portland, OR;
6. Division of Hematology, University of Utah School of Medicine, Salt Lake City, UT;
7. Pediatric Blood and Marrow Transplant Program, Primary Children's Medical Center, Huntsman Cancer Institute, Salt Lake City, UT;
8. Colorado Blood Cancer Institute at Presbyterian/St. Luke's Medical Center, Denver, CO;
9. Clinical Statistics Program, Clinical Research Division, Fred Hutchinson Cancer Research Center, Seattle, WA; and
10. Department of Biostatistics, University of Washington School of Public Health, Seattle, WA