title: A tale of two drug testing technologies: GC-MS and LC-MS/MS.
authors.forename: Charles
authors.initials: C
authors.lastname: Mikel
authors.forename: Amadeo
authors.initials: A
authors.lastname: Pesce
authors.forename: Cameron
authors.initials: C
authors.lastname: West
mesh_terms: D002853:Chromatography, Liquid / Q000706:statistics & numerical data*; D005189:False Positive Reactions; D008401:Gas Chromatography-Mass Spectrometry / Q000706:statistics & numerical data*; D006801:Humans; D010349:Patient Compliance; D011237:Predictive Value of Tests; D011786:Quality Control; D012680:Sensitivity and Specificity; D015813:Substance Abuse Detection / Q000379:methods* / Q000592:standards / Q000706:statistics & numerical data*; D019966:Substance-Related Disorders / Q000175:diagnosis / Q000652:urine; D016482:Urinalysis / Q000379:methods* / Q000592:standards / Q000706:statistics & numerical data*