Biomarkers of Exposure Among "Dual Users" of Tobacco Cigarettes and Electronic Cigarettes in Canada - Czoli, Christine D; Fong, Geoffrey T; Goniewicz, Maciej L; Hammond, David (Nicotine & tobacco research, 2019)
Keywords: Adult; Biomarkers - urine; Breath Tests; Carbon Monoxide - analysis; Cigarette Smoking - epidemiology; Cigarette Smoking - urine; Cross-Over Studies; Electronic Nicotine Delivery Systems; Female; Humans; Male; Middle Aged; Ontario - epidemiology; Smokers; Smoking Cessation - methods; Tobacco Products - analysis; Vaping - epidemiology; Vaping - urine; Ontario