title: Intellectual functions with restricted intakes of B-complex vitamins.
authors.forename: H
authors.initials: H
authors.lastname: GUETZKOW
authors.forename: J
authors.initials: J
authors.lastname: BROZEK
mesh_terms: D006801:Humans; D007361:Intelligence Tests; D013850:Thinking; D014803:Vitamin B Complex; D014815:Vitamins
chemical_list: D014815:Vitamins; D014803:Vitamin B Complex