Retinol, carotene, and the cancer/cholesterol association.
D002338:Carotenoids / Q000097:blood*; D002784:Cholesterol / Q000097:blood*; D005260:Female; D006801:Humans; D008297:Male; D009369:Neoplasms / Q000097:blood / Q000453:epidemiology*; D012306:Risk; D014801:Vitamin A / Q000097:blood*
D014801:Vitamin A; D002338:Carotenoids; D002784:Cholesterol