title: Vitamin A, retinol, carotene, and cancer prevention.
mesh_terms: D002338:Carotenoids / Q000627:therapeutic use; D004032:Diet; D006801:Humans; D008175:Lung Neoplasms / Q000517:prevention & control; D009369:Neoplasms / Q000517:prevention & control*; D012306:Risk; D014801:Vitamin A / Q000627:therapeutic use
chemical_list: D014801:Vitamin A; D002338:Carotenoids