1. Christine Kielb, MS, is a research scientist with the Bureau of Environmental and Occupational Epidemiology Center for Environmental Health, New York State Department of Health, Troy, NY
2. Shao Lin, PhD, is a section chief of the Bureau of Environmental and Occupational Epidemiology Center for Environmental Health, New York State Department of Health, Troy, NY
3. Syni-an Hwang, PhD, is bureau director of the Bureau of Environmental and Occupational Epidemiology Center for Environmental Health, New York State Department of Health, Troy, NY