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Compliance with use of study cigarettes: (A) percent of subjects in each group who self-report using only study cigarettes in Week 6; (B) percent of participants with urinary total anatabine levels <0.014nmol/ml, the level used to biochemically estimate compliance with study cigarettes.
NRT, nicotine-replacement therapy; NNC, normal nicotine content; VLNC, very low nicotine content.
