title: Homocysteine, B vitamins, and cognitive deficit in the elderly.
authors.forename: A David
authors.initials: AD
authors.lastname: Smith
mesh_terms: D000375:Aging / Q000097:blood* / Q000523:psychology*; D003072:Cognition Disorders / Q000097:blood*; D005492:Folic Acid / Q000097:blood*; D006710:Homocysteine / Q000097:blood*; D006801:Humans; D014805:Vitamin B 12 / Q000097:blood*
chemical_list: D006710:Homocysteine; D005492:Folic Acid; D014805:Vitamin B 12