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2.
Kniesner, A.H. , Mann, A.W., and Spies, T.D.: Relationship of Dental Caries to Deficiencies of the Vitamin B Group, J. D. Res. 21: 259, 1942.
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Glavind, J., Granados, H., Hansen, L.A., Schilling, K., Kruse, I., and Dam, H.: The Presence of Vitamins in the Saliva, Internat. Ztschr. Vitaminforsch. 20: 234, 1948.
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Granados, H. , Glavind, J., Noer, B., and Dam, H.: Studies on the Growth Promoting Action of Human Saliva, Acta path. et microbiol. Scandinav. 27: 501, 1950.
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Koser, S.A., and Fisher, B.J.: Vitamin Requirements of Oral Lactobacilli, J. D. Res. 29: 760, 1950.
6.
Association of Vitamin Chemists: Methods of Vitamin Assay, ed. 2, New York , 1951, Interscience Publishers Inc., ch. 11, p. 231.
7.
Hill, T.J., and Kniesner, A.H.: A Nutritional Requirement of Oral Lactobacilli and Its Influence on Dental Caries, New YorkJ. Dent. 11: 319, 1941.
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Denko, C.W., Grundy, W.E., and Porter, J.W.: Blood Levels in Normal Adults on a Restricted Dietary Intake of B-Complex Vitamins and Tryptophane, Arch. Biochem. 13: 481, 1947.
9.
Hodson, A.Z. : The Microbiological Assay of "Folic Acid" as Applied to Milk, J. Nutrition38: 25, 1949.
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Williams, R.J. , Eakin, R.E., Beerstecher, E., Jr., and Shive , W.: The Biochemistry of B. Vitamins, New York, 1951, Reinhold Publishing Corporation, table27, p. 348.
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Collins, R.A. , Harper, A.E., Schreiber, M., and Elvehjem, C.A.: The Folic Acid and Vitamin B12 Content of the Milk of Various Species, J. Nutrition43: 313, 1951.
12.
Association of Vitamin Chemists: Methods of Vitamin Assay, ed. 2, New York, 1951, Interscience Publishers Inc., ch. 10, p. 217.
13.
Snell, E.E. , and Rannefeld, A.N.: The Vitamin B6 Group. III. The Vitamin Activity of Pyridoxal and Pyridoxamine for Various Organisms, J. Biol. Chem. 157: 475, 1945.
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Hendlin, D. , Caswell, M.C., Peters, V.J., and Wood, T.R.: The Nature of the TJ Factor for Lactobacillus lactis Dorner, J. Biol. Chem. 186: 647, 1950 .
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Rabinowitz, J.C., and Snell, E.E.: The Vitamin Be Group. XII. Microbiological Activity and Natural Occurrence of Pyridoxamine Phosphate, J. Biol. Chem. 169: 643, 1947.
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McNutt, W.S., and Snell, E.E.: Pyridoxal Phosphate and Pyridoxamine Phosphate as Growth Factors for Lactic Acid Bacteria, J. Biol. Chem . 182: 557, 1950.