1. Zinc in the nutrition of the rat;TODD;Am. J. Physiol.,1934
2. Parakeratosis or zinc deficiency disease in the pig;TUCKER;Proc. Soc. Exp. Biol. Med.,1955
3. Zinc nutrition of cattle: A review;MILLER;J. Dairy Sci.,1970
4. G. MATRONE, 1970. Biochemistry and mechanism of action of trace elements, Proc. 8th Int. Congress Nutr. Prague 171–175 (1969).
5. B. L. O'DELL, Metabolic functions of zinc — A new look, Proc. 4th International Symposium on Trace Element Metabolism in Man and Animals. May 11–15, Perth, Australia (in press, 1981).