1. Department of Medical Oncology, Dana-Farber Cancer Institute, Boston, MA;
2. Blood and Marrow Transplant Clinical Trials Network, Rockville, MD;
3. Department of Biostatistics and Computational Biology, Dana-Farber Cancer Institute, Boston, MA;
4. University of Michigan Medical Center, Ann Arbor;
5. EMMES Corporation, Rockville, MD; and
6. The Center for International Blood and Marrow Transplant Research, Milwaukee, WI