1. Divisions of Cancer Control and Population Sciences, Department of Health and Human Services, Bethesda, MD
2. Exponent, Chicago, IL
3. Department of Epidemiology and Biostatistics, University of South Carolina, Columbia, SC
4. Information Management Services, Inc., Calverton, MD
5. Divisions of Cancer Epidemiology and Genetics, National Cancer Institute, NIH, Department of Health and Human Services, Bethesda, MD