1. Division of Hematology,
2. Biomedical Statistics and Informatics, and
3. Division of Hematopathology, Mayo Clinic, Rochester, MN;
4. College of Medicine, University of Iowa, Iowa City, IA;
5. Wilmot Cancer Institute, University of Rochester, Rochester, NY;
6. Fred Hutchinson Cancer Center/South West Oncology Group Statistical Center, Seattle, WA; and
7. Division of Epidemiology, Mayo Clinic, Rochester, MN