Vitamin B12 deficiency.
Lyons
W L
WL
Yaffe
K
K
D000368:Aged; D003072:Cognition Disorders / Q000209:etiology*; D015986:Confounding Factors, Epidemiologic; D006801:Humans; D008609:Mental Status Schedule; D014728:Veterans; D014806:Vitamin B 12 Deficiency / Q000150:complications*