title: A gas chromatographic method for the determination of methylmalonic acid in urine.
mesh_terms: D000818:Animals; D002087:Butyrates / Q000032:analysis; D002849:Chromatography, Gas / Q000379:methods*; D004952:Esters / Q000032:analysis; D005019:Ethyl Ethers; D006801:Humans; D007202:Indicators and Reagents; D008314:Malonates / Q000592:standards / Q000652:urine*; D008745:Methylation; D012756:Sheep; D012997:Solvents
chemical_list: D002087:Butyrates; D004952:Esters; D005019:Ethyl Ethers; D007202:Indicators and Reagents; D008314:Malonates; D012997:Solvents