title: GC/MS assay of the marijuana carboxy metabolite: urine interference with the dimethyl derivative.
authors.forename: W A
authors.initials: WA
authors.lastname: Joern
mesh_terms: D002188:Cannabis / Q000737:chemistry*; D013759:Dronabinol / Q000737:chemistry; D008401:Gas Chromatography-Mass Spectrometry; D006801:Humans; D015813:Substance Abuse Detection
chemical_list: D013759:Dronabinol