1. Department of Cancer Epidemiology, Moffitt Cancer Center, Tampa, FL.
2. Department of Quantitative Health Sciences, Divisions of Clinical Trials and Biostatistics and Computational Biology, Mayo Clinic, Rochester, MN.
3. Department of Epidemiology, University of Hawaii Cancer Center, Honolulu, HI.
4. Department of Radiology, Mayo Clinic, Rochester, MN.
5. Department of Internal Medicine and Biochemistry, University of New Mexico Health Sciences Center, Albuquerque, NM.
6. Department of Public Health Sciences, Division of Biostatistics, University of California, Davis, Davis, CA.
7. Kaiser Permanente Washington Health Research Institute, Seattle, WA.
8. Departments of Medicine and Epidemiology and Biostatistics, University of California at San Francisco, San Francisco, CA.
9. Department of Quantitative Health Sciences, Division of Epidemiology, Mayo Clinic, 200 First St SW, Rochester, MN 55905.