1. Center for International Blood and Marrow Transplant Research, Medical College of Wisconsin, Milwaukee;
2. Division of Cancer Epidemiology and Genetics, National Cancer Institute, National Institutes of Health, Department of Health and Human Services, Bethesda, MD;
3. Hôpital Saint Louis, Paris, France;
4. James P. Willmot Cancer Center, Rochester, NY;
5. Memorial Sloan-Kettering Cancer Center, New York, NY;
6. Fred Hutchinson Cancer Research Center, Seattle, WA; and
7. Shands Hospital, Gainesville, FL