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. 2012 Apr 25;120(7):1042–1048. doi: 10.1289/ehp.1104556

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(A) Unadjusted and adjusted PRs (95% CI) of maternal smoking and ASD stratified by race/ethnicity. (B) Adjusted PRs (95% CI) of maternal smoking and ASD case subgroups. (C) Unadjusted PRs (95% CI) of maternal smoking in pregnancy in observed data and simulated data assuming outcome misclassification. w/o, without.