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Development and validation of sensitive method for determination of serum cotinine in smokers and nonsmokers by liquid chromatography/atmospheric pressure ionization tandem mass spectrometry.
Bernert JT Jr, Turner WE, Pirkle JL, Sosnoff CS, Akins JR, Waldrep MK, Ann Q, Covey TR, Whitfield WE, Gunter EW, Miller BB, Patterson DG Jr, Needham LL, Hannon WH, Sampson EJ. Bernert JT Jr, et al. Among authors: ann q. Clin Chem. 1997 Dec;43(12):2281-91. Clin Chem. 1997. PMID: 9439445