title: Effect of oral administration of vitamin A on plasma levels of vitamin A and carotene in aged males.
authors.forename: M J
authors.initials: MJ
authors.lastname: YIENGST
authors.forename: N W
authors.initials: NW
authors.lastname: SHOCK
mesh_terms: D000284:Administration, Oral; D002338:Carotenoids; D006801:Humans; D008297:Male; D010949:Plasma; D014801:Vitamin A
chemical_list: D014801:Vitamin A; D002338:Carotenoids
keywords: CAROTENE; VITAMIN A