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2005: Insook Kim; Abraham Wtsadik; Robin E Choo; Hendrée E Jones; Marilyn A Huestis
Usefulness of salivary trans-3'-hydroxycotinine concentration and trans-3'-hydroxycotinine/cotinine ratio as biomarkers of cigarette smoke in pregnant women.
Journal of analytical toxicology 2005;29(7):689-95.
2004: Takeshi Saito; Abraham Wtsadik; Karl B Scheidweiler; Neil Fortner; Sanae Takeichi; Marilyn A Huestis
Validated gas chromatographic-negative ion chemical ionization mass spectrometric method for delta(9)-tetrahydrocannabinol in sweat patches.
Clinical chemistry 2004;50(11):2083-90.
2002: Kenzie L. Preston; David H Epstein; Edward J Cone; Abraham Wtsadik; Marilyn A Huestis; Eric T. Moolchan
Urinary elimination of cocaine metabolites in chronic cocaine users during cessation.
Journal of analytical toxicology 2002;26(7):393-400.