title: Vitamin B-12 and folate deficiency in elderly persons.
authors.forename: Nicholas J
authors.initials: NJ
authors.lastname: Wald
authors.forename: Malcolm
authors.initials: M
authors.lastname: Law
authors.forename: Victor A
authors.initials: VA
authors.lastname: Hoffbrand
mesh_terms: D000368:Aged; D005494:Folic Acid Deficiency / Q000097:blood*; D006801:Humans; D008297:Male; D006113:United Kingdom / Q000453:epidemiology; D014806:Vitamin B 12 Deficiency / Q000097:blood* / Q000175:diagnosis / Q000453:epidemiology