title: Determination of morphine in serum and cerebrospinal fluid by gas chromatography and selected ion monitoring after reversed-phase column extraction.
mesh_terms: D002849:Chromatography, Gas / Q000379:methods; D005965:Glucuronates / Q000378:metabolism; D005966:Glucuronidase; D006801:Humans; D006868:Hydrolysis; D009020:Morphine / Q000032:analysis* / Q000097:blood / Q000134:cerebrospinal fluid
chemical_list: D005965:Glucuronates; D009020:Morphine; D005966:Glucuronidase