title: Metabolic precursors of methylmalonic acid in vitamin-B12 deficiency.
mesh_terms: D006801:Humans; D007532:Isoleucine / Q000494:pharmacology; D008314:Malonates / Q000378:metabolism* / Q000652:urine*; D011422:Propionates / Q000494:pharmacology; D014633:Valine / Q000494:pharmacology; D014806:Vitamin B 12 Deficiency / Q000378:metabolism*
chemical_list: D008314:Malonates; D011422:Propionates; D007532:Isoleucine; D014633:Valine