1. Department of Epidemiology, University of North Carolina, Chapel Hill, Chapel Hill, North Carolina, USA
2. Consulting in the Public Interest, Lambertville, New Jersey, USA
3. Department of Biostatistics, and
4. Carolina Population Center, University of North Carolina, Chapel Hill, Chapel Hill, North Carolina, USA
5. Division of Cancer Epidemiology and Genetics, National Cancer Institute, National Institutes of Health, Department of Health and Human Services, Bethesda, Maryland, USA
6. Department of Epidemiology, Mailman School of Public Health, Columbia University, New York, New York, USA
7. Department of Preventive Medicine, Mount Sinai School of Medicine, New York, New York, USA
8. GlaxoSmithKline Inc., Singapore
9. Department of Epidemiology and Biostatistics, Arnold School of Public Health, University of South Carolina, Columbia, South Carolina, USA
10. Department of Medicine, and
11. Department of Environmental Health Sciences, Columbia University, New York, New York, USA
12. Laboratory of Genetic Ecotoxicology, Institute of Experimental Medicine AS CR, Prague, Czech Republic