Brudevold, F. , and Steadman, L.T.Distribution of Lead in Human Enamel, J. D. Res., 35:430, 1956.
2.
-. Study of Tin in Enamel, ibid., p. 749.
3.
Wynn, W., and Haldi, J.Dental Caries in the Albino Rat on High Sucrose Diets Containing Different Amounts of Aluminium, J. Nutrition, 54:285, 1954.
4.
Kruger, B.J.The Effect of Trace Elements on Experimental Dental Caries in the Albino Rat , Austral. D. J., 3:236, 1958.
5.
-. The Effect of Trace Elements on Experimental Dental Caries in the Albino Rat, ibid., p. 298.
6.
-.ibid.,M.,p.374.
7.
Thomas, M.D., and Collier, T.R.Concentration of Arsenic in Tobacco Smoke Determined by a Rapid Titrimetric Method, J. Ind. Hyg. Toxicol., 27:201, 1945.