Vogel, R. I., Carmella, S. G., Stepanov, I., Hatsukami, D. K., & Hecht, S. S. (2011). The Ratio of a Urinary Tobacco-Specific Lung Carcinogen Metabolite to Cotinine is Significantly Higher in Passive than in Active Smokers.

Vogel, Rachel Isaksson, Steven G. Carmella, Irina Stepanov, Dorothy K. Hatsukami, و Stephen S. Hecht. The Ratio of a Urinary Tobacco-Specific Lung Carcinogen Metabolite to Cotinine Is Significantly Higher in Passive Than in Active Smokers. 2011.

Vogel, Rachel Isaksson, et al. The Ratio of a Urinary Tobacco-Specific Lung Carcinogen Metabolite to Cotinine Is Significantly Higher in Passive Than in Active Smokers. 2011.