*University of Cincinnati College of Medicine, Dept. of Environmental Health, Cincinnati, OH, United States; †Environmental Health Investigation Branch, California Department of Public Health, Richmond, CA, United States; ‡University of Cincinnati College of Medicine, Dept. of Pediatrics, Cincinnati, OH, United States; §Cincinnati Children's Hospital Medical Center, Cincinnati, OH, United States; ¶Division of Research, Kaiser Permanente, Oakland, CA, United States; and **Division of Laboratory Sciences, National Center for Environmental Health, Centers for Disease Control and Prevention, Atlanta, GA, United States.
Abstracts published in Epidemiology have been reviewed by the organizations of Epidemiology. Affliate Societies at whose meetings the abstracts have been accepted for presentation. These abstracts have not undergone review by the Editorial Board of Epidemiology.