1. F. H. Nielsen,Advances in Modem Toxicology, vol. 2, 3rd ed., Hemisphere, Washington, DC, pp. 129–146 (1977).
2. E. J. Underwood,Trace Elements in Human and Animal Nutrition, Academic, New York, p. 7 (1977).
3. J. Xie, T. Funakoshi, H. Simada, and S. Kojima, Effects of chelating agents on tissue distribution and exeretion of nickel in mice,Res. Commun. Mol. Pathol. Pharmacol. 86, 245–255 (1994).
4. H. A. Schroeder and M. Mitchener, Toxic effects of trace elements on the production of mice and rats,Arch. Environ. Health 23, 102–106 (1971).
5. S. Dasgupta, S. K. Biswas, and K. K. Das, Effect of nickel on acid and alkaline phosphatase activities in the reproductive system of male rats during protein restriction,Med. Sci. Res 17, 95–96 (1989).