title: Observation of reduced concentration of delta 9-THC-carboxylic acid in urine specimen containers using internal barcode labels.
authors.forename: G D
authors.initials: GD
authors.lastname: Bond
authors.forename: P
authors.initials: P
authors.lastname: Chand
authors.forename: A S
authors.initials: AS
authors.lastname: Walia
authors.forename: R H
authors.initials: RH
authors.lastname: Liu
mesh_terms: D013759:Dronabinol / Q000031:analogs & derivatives* / Q000652:urine; D004355:Drug Stability; D006801:Humans; D013048:Specimen Handling / Q000379:methods*
chemical_list: D013759:Dronabinol; C025351:delta(9)-tetrahydrocannabinolic acid