title: Gas chromatographic-mass spectrometric identification of urinary bufotenin and dimethyltryptamine in drug-free chronic schizophrenic patients.
mesh_terms: D002849:Chromatography, Gas; D002855:Chromatography, Thin Layer; D002908:Chronic Disease; D004032:Diet; D006213:Hallucinogens / Q000652:urine*; D006801:Humans; D008297:Male; D013058:Mass Spectrometry; D008722:Methods; D004130:N,N-Dimethyltryptamine / Q000652:urine; D010919:Placebos; D012559:Schizophrenia / Q000652:urine*; D013050:Spectrometry, Fluorescence; D013375:Substance Withdrawal Syndrome / Q000209:etiology; D014363:Tryptamines / Q000652:urine*
chemical_list: D006213:Hallucinogens; D010919:Placebos; D014363:Tryptamines; D004130:N,N-Dimethyltryptamine