1. Environmental and Occupational Medicine and Epidemiology Program, Department of Environmental Health, and
2. Department of Biostatistics, Harvard School of Public Health, Boston, Massachusetts;
3. Department of Physical Education and Health, Samara State Medical University, Samara, Russia;
4. Chapaevsk Medical Association, Chapaevsk, Samara Region, Russia;
5. Channing Laboratory, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, Massachusetts;
6. Pediatric Endocrine Division, Departments of Pediatrics and Cell Biology, University of Massachusetts Medical School, Worcester, Massachusetts;
7. Centers for Demography and Human Ecology, Institute for Forecasting, Russian Academy of Sciences, Moscow, Russia;
8. Environmental Health and Engineering, Inc, Needham, Massachusetts;
9. EnviroSolutions Consulting, Inc, Jasper, Georgia;
10. Division of Laboratory Sciences, Organic Analytical Toxicology Branch, National Center for Environmental Health, Centers for Disease Control and Prevention, Atlanta, Georgia; and
11. Russian Institute of Nutrition, Moscow, Russia