title: Beta carotene, vitamin E, and lung cancer.
authors: D
authors: D
authors: Kritchevsky
mesh_terms: D002338:Carotenoids / Q000009:adverse effects*; D006801:Humans; D008175:Lung Neoplasms / Q000209:etiology*; D012307:Risk Factors; D012907:Smoking / Q000009:adverse effects; D014810:Vitamin E / Q000009:adverse effects*; D019207:beta Carotene
chemical_list: D019207:beta Carotene; D014810:Vitamin E; D002338:Carotenoids