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

• Main Authors: Carlsten Chris (Author), Dimich-Ward Helen (Author), DyBuncio Anne (Author), Becker Allan B (Author), Chan-Yeung Moira (Author)
• Format: Book
• Published: BMC, 2012-12-01T00:00:00Z.
• Subjects: article
• Online Access: Connect to this object online.

<p>Abstract</p> <p>Background</p> <p>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...