Prevention of cancer.
D000293:Adolescent; D000328:Adult; D002648:Child; D002675:Child, Preschool; D004032:Diet; D005260:Female; D006801:Humans; D008297:Male; D009369:Neoplasms / Q000209:etiology / Q000517:prevention & control*; D009784:Occupational Diseases / Q000209:etiology; D011127:Polyps / Q000235:genetics; D014983:Xeroderma Pigmentosum / Q000235:genetics