1. Consulting in the Public Interest, Lambertville, New Jersey, USA
2. Division of Cancer and Epidemiology and Genetics, National Cancer Institute, National Institutes of Health, Department of Health and Human Services, Rockville, Maryland, USA
3. Department of Epidemiology and
4. Department of Environmental Health Sciences, Mailman School of Public Health, Columbia University, New York, New York, USA
5. Department of Community and Preventive Medicine, Mount Sinai School of Medicine, New York, New York, USA
6. College of Medicine, Penn State University, Hershey, Pennsylvania, USA
7. Southwest Research Institute, San Antonio, Texas, USA
8. Department of Epidemiology, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina, USA