Braun, J. M., Yolton, K., Pérez-Ríos, M., Lanphear, B., Mourino, N., & Santiago-Pérez, M. I. Secondhand tobacco smoke exposure among children under 5 years old: Questionnaires versus cotinine biomarkers: a cohort study. BMJ Publishing Group.
Chicago Style (17th ed.) CitationBraun, Joseph M., Kimberly Yolton, Mónica Pérez-Ríos, Bruce Lanphear, Nerea Mourino, and Maria Isolina Santiago-Pérez. Secondhand Tobacco Smoke Exposure Among Children Under 5 Years Old: Questionnaires Versus Cotinine Biomarkers: A Cohort Study. BMJ Publishing Group.
MLA (9th ed.) CitationBraun, Joseph M., et al. Secondhand Tobacco Smoke Exposure Among Children Under 5 Years Old: Questionnaires Versus Cotinine Biomarkers: A Cohort Study. BMJ Publishing Group.
Warning: These citations may not always be 100% accurate.