title: Improved prenatal diagnosis of methylmalonic acidemia: mass fragmentography of methylmalonic acid in amniotic fluid and maternal urine.
mesh_terms: D000328:Adult; D000592:Amino Acid Metabolism, Inborn Errors / Q000175:diagnosis*; D000653:Amniotic Fluid / Q000032:analysis; D005260:Female; D006801:Humans; D008314:Malonates / Q000378:metabolism*; D008764:Methylmalonic Acid / Q000032:analysis / Q000378:metabolism* / Q000652:urine; D011247:Pregnancy; D011296:Prenatal Diagnosis; D013997:Time Factors
chemical_list: D008314:Malonates; D008764:Methylmalonic Acid