title: Detection, isolation and characterization of normorphine and norcodeine as morphine metabolites in man.
mesh_terms: D000284:Administration, Oral; D002855:Chromatography, Thin Layer; D003061:Codeine / Q000652:urine*; D006556:Heroin Dependence; D006801:Humans; D007275:Injections, Intravenous; D009682:Magnetic Resonance Spectroscopy; D013058:Mass Spectrometry; D009020:Morphine / Q000008:administration & dosage / Q000652:urine*
chemical_list: D009020:Morphine; D003061:Codeine