首页>Occupational and environmental medicine>Comparison of gestational dating methods and implications for exposure-outcome associations: an example with PM2.5 and preterm birth
Comparison of gestational dating methods and implications for exposure-outcome associations: an example with PM2.5 and preterm birth
作者单位：Portland State Univ, Coll Urban & Publ Affairs, Sch Community Hlth, Portland, OR 97207 USA[1]Univ N Carolina, Dept Epidemiol, Gillings Sch Global Publ Hlth, Chapel Hill, NC USA[2]US EPA, Natl Hlth & Environm Effects Res Lab, Off Res & Dev, Chapel Hill, NC USA[3]
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