Possible protective effect of selenium against human cancer.
D002170:Canada; D004032:Diet; D005260:Female; D006801:Humans; D008297:Male; D009369:Neoplasms / Q000453:epidemiology / Q000209:etiology / Q000517:prevention & control*; D012643:Selenium; D012737:Sex Factors; D014481:United States
D012643:Selenium