title: Discussion of "Validity Testing of Commercial Urine Cocaine Metabolite Assays: Parts I and II".
authors.forename: V
authors.initials: V
authors.lastname: Spiehler
authors.forename: H
authors.initials: H
authors.lastname: Wilson
authors.forename: S
authors.initials: S
authors.lastname: el Shami
mesh_terms: D003042:Cocaine / Q000652:urine*; D005189:False Positive Reactions; D006801:Humans; D008297:Male; D019966:Substance-Related Disorders / Q000175:diagnosis*
chemical_list: D003042:Cocaine