Methylmalonic acid excretion in vitamin B12 defciency.
D002855:Chromatography, Thin Layer; D006402:Hematologic Diseases / Q000652:urine; D006801:Humans; D008314:Malonates / Q000652:urine*; D014805:Vitamin B 12; D014806:Vitamin B 12 Deficiency
D008314:Malonates; D014805:Vitamin B 12