title: Cobalamin deficiency in the elderly.
authors.forename: P
authors.initials: P
authors.lastname: Drinka
mesh_terms: D000368:Aged; D006710:Homocysteine / Q000097:blood; D006801:Humans; D014805:Vitamin B 12 / Q000097:blood* / Q000378:metabolism; D014806:Vitamin B 12 Deficiency / Q000097:blood* / Q000201:enzymology
chemical_list: D006710:Homocysteine; D014805:Vitamin B 12