Authors: Ji, AJ Lawson, GM Anderson, R Dale, LC Croghan, IT Hurt, RD

Citation: Aj. Ji et al., A new gas chromatography mass spectrometry method for simultaneous determination of total and free trans-3 '-Hydroxycotinine and cotinine in the urine of subjects receiving transdermal nicotine, CLIN CHEM, 45(1), 1999, pp. 85-91