Lung cancer, fruit, green salad and vitamin pills.
D000368:Aged; D005260:Female; D005638:Fruit; D006801:Humans; D008175:Lung Neoplasms / Q000401:mortality*; D008297:Male; D008875:Middle Aged; D011446:Prospective Studies; D012907:Smoking; D011795:Surveys and Questionnaires; D014481:United States; D014675:Vegetables; D014815:Vitamins
D014815:Vitamins