title: Methylmalonic acid: a test whose time has come?
authors.affiliation: Department of Pathology and Laboratory Medicine, School of Medicine, University of Louisville, Louisville, KY 40202, USA. rjelin01@gwise.louisville.edu
authors.forename: R J
authors.initials: RJ
authors.lastname: Elin
authors.forename: W E
authors.initials: WE
authors.lastname: Winter
mesh_terms: D000368:Aged; D006801:Humans; D008764:Methylmalonic Acid / Q000032:analysis* / Q000097:blood / Q000652:urine; D014805:Vitamin B 12 / Q000378:metabolism; D014806:Vitamin B 12 Deficiency / Q000175:diagnosis* / Q000378:metabolism*
chemical_list: D008764:Methylmalonic Acid; D014805:Vitamin B 12