Results (median ± interquartile range) for hair nicotine and prevalence rates (±95% confidence interval) for SHS+ and SHS- in children and adult never-smokers.
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Note: * = χ2 significant difference (p = χ2 significant difference (pKey: SHS+ = positive diagnosis of SHS exposure using the forms; SHS– = negative diagnosis of SHS exposure using the forms.
创建时间：
2015-12-02
