Wells, A J Misclassification rates for current smokers misclassified as nonsmokers. [electronic resource] - American journal of public health Oct 1998 - 1503-9 p. digital Publication Type: Comparative Study; Journal Article; Review ISSN: 0090-0036 Standard No.: 10.2105/ajph.88.10.1503 doi Subjects--Topical Terms: BiasBiomarkersCotinine--bloodDiagnostic ErrorsFemaleHumansMaleSmoking--metabolismTobacco Smoke PollutionUnited States