tailieunhanh - Cotinine versus questionnaire: Early-life environmental tobacco smoke exposure and incident asthma

The use of biomarkers has expanded considerably, as an alternative to questionnaire-based metrics of environmental tobacco smoke (ETS); few studies have assessed the affect of such alternative metrics on diverse respiratory outcomes in children, and we aimed to do so. | Cotinine versus questionnaire: Early-life environmental tobacco smoke exposure and incident asthma

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