title: The present status of antioxidant vitamins and beta-carotene.
mesh_terms: D000818:Animals; D000975:Antioxidants / Q000494:pharmacology*; D002338:Carotenoids / Q000494:pharmacology*; D002986:Clinical Trials as Topic; D006801:Humans; D014815:Vitamins / Q000494:pharmacology*; D019207:beta Carotene
chemical_list: D000975:Antioxidants; D014815:Vitamins; D019207:beta Carotene; D002338:Carotenoids