1. Division of Cancer Epidemiology and Genetics, National Cancer Institute, National Institutes of Health, US Department of Health and Human Services, Bethesda, MD;
2. Departments of Microbiology, Immunology, and Molecular Genetics, David Geffen School of Medicine, University of California, Los Angeles;
3. Department of Medicine, University of Minnesota, Minneapolis;
4. Department of Hematology/Oncology, Marshfield Clinic, WI; and
5. Protein Expression Laboratory, Advanced Technology Program, SAIC-Frederick Inc, National Cancer Institute, Frederick, MD