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cotinine |
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| For decades, cotinine (nicotine metabolite) screening has been a reliable antidote for "smoker's amnesia. Data on covariates and daily smoking habits were obtained from a baseline interview and daily diary, and smoking status was validated by cotinine assay. Blood concentrations of cotinine, a breakdown product of nicotine, have dropped by 68 to 75 percent in various age groups since a previous CDC study examined data covering 1988 to 1991. |
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