title: Identification of drugs by chemical ionization mass spectroscopy. II.
mesh_terms: D002073:Butanes; D005740:Gases; D006801:Humans; D007202:Indicators and Reagents; D013058:Mass Spectrometry; D004364:Pharmaceutical Preparations / Q000032:analysis* / Q000652:urine
chemical_list: D002073:Butanes; D005740:Gases; D007202:Indicators and Reagents; D004364:Pharmaceutical Preparations