1. Infections and Immunoepidemiology Branch, Division of Cancer Epidemiology and Genetics, National Cancer Institute , Bethesda, Maryland , USA
2. Biostatistics Branch, Division of Cancer Epidemiology and Genetics, National Cancer Institute , Bethesda, Maryland , USA
3. Department of Medicine, Feinberg School of Medicine, Northwestern University , Chicago, Illinois , USA
4. Information Management Services Inc. , Calverton, Maryland , USA
5. Department of Public Health Sciences, University of California , Davis, California , USA
6. Department of Epidemiology, Johns Hopkins Bloomberg School of Public Health , Baltimore, Maryland , USA
7. Department of Infectious Diseases and Microbiology, University of Pittsburgh, Graduate School of Public Health , Pittsburgh, Pennsylvania , USA
8. Division of Cancer Epidemiology and Genetics, Laboratory of Translational Genomics, National Cancer Institute , Bethesda, Maryland , USA
9. Department of Medicine, Johns Hopkins School of Medicine , Baltimore, Maryland , USA