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2. 21 CFR Pt. 573: Food additives permitted in the feed and drinking water of animals;U.S. Department of Health and Human Services, Food and Drug Administration;Selenium Fed. Registr.,1984
3. Decreased serum levels of selenium and glutathione peroxidase activity associated with aging, malignancy and chronic hemodialysis;Kuroda;Tr. Elem. Med.,1988
4. The selenium dilemma;Scott;J. Nutr.,1973
5. Selenium in biology;Frost;Ann. Rev. Pharmacol.,1975