title: Letter: Interference from serum separators in gas-chromatographic drug analysis.
mesh_terms: D001463:Barbiturates; D001800:Blood Specimen Collection; D002849:Chromatography, Gas; D004209:Disposable Equipment; D006801:Humans; D004364:Pharmaceutical Preparations / Q000097:blood*; D010881:Piperidones
chemical_list: D001463:Barbiturates; D004364:Pharmaceutical Preparations; D010881:Piperidones