title: Urinary excretion of histidine metabolites as an indication for folic acid and vitamin B 12  deficiency.
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D002852:Chromatography, Ion Exchange; D002855:Chromatography, Thin Layer; D003276:Contraceptives, Oral / Q000494:pharmacology; D004586:Electrophoresis; D005365:FIGLU Test; D005260:Female; D005494:Folic Acid Deficiency / Q000175:diagnosis* / Q000652:urine; D006639:Histidine / Q000378:metabolism*; D006801:Humans; D006827:Hydantoins / Q000652:urine; D007093:Imidazoles / Q000652:urine; D008297:Male; D008722:Methods; D008727:Methotrexate / Q000627:therapeutic use; D008875:Middle Aged; D011422:Propionates / Q000652:urine; D014806:Vitamin B 12 Deficiency / Q000175:diagnosis* / Q000652:urine
chemical_list: D003276:Contraceptives, Oral; D006827:Hydantoins; D007093:Imidazoles; D011422:Propionates; D006639:Histidine; D008727:Methotrexate