Jay, P.: Lactobacillus Acidophilus and Dental Caries, Am. J. Pub. Health28: 759, 1938.
2.
Dean, H.T., Jay, P., Arnold, F.A., Jr., and Elvove, E.: Domestic Water and Dental Caries; Study of 2,832 White Children, Aged 12-14 Years, of 8 Suburban Chicago Communities, Including Lactobacillus Acidophilus Studies of 1,761 Children, Pub. Health Rep.56: 761, 1941.
3.
Wach, E.C., Kesel, R.G., Hine, M.K., and O'Donnell, J.F.: Testing Caries Activity by Acid Production in Saliva, J. D. Res. 22: 415, 1943.
4.
Jay, P., Hadley, F.P., Koehne, M., and Bunting, R.W.: Observations on Relationship of Lacto-Bacillus Acidophilus to Dental Caries in Children During Experimental Feeding of Candy, J. A. D. A. 23: 846, 1936.
5.
Barker, S.B. , and Summerson, W.H.: Colorimetric Determination of Lactic Acid in Biological Material, J. Biol. Chem. 138: 535, 1941 .
6.
Markus, R.L. : Colorimetric Determination of Lactic Acid in Body Fluids Utilizing Cation Exchange for Deproteinization, Arch. Biochem. 29: 159, 1950.