Zhang et al. respond.
Nanhua Zhang is with Department of Epidemiology and Biostatistics, University of South Florida, Tampa. Harolyn W. Baker is with MPRO, Michigan's Quality Improvement Organization, Famington Hills, MI. Michael R. Elliott is with Department of Biostatistics, University of Michigan, Ann Arbor.
Nanhua
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Zhang
Harolyn W
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Baker
Michael R
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Elliott
D004522:Educational Status; D005260:Female; D006801:Humans; D020264:Lead Poisoning, Nervous System, Childhood / Q000453:epidemiology*; D008297:Male