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2.
Zipkin, I., and Piez, K.A.: The Citric Acid Content of Human Teeth, J. D. Res. 29: 498, 1950.
3.
Hess, W.C., and Lee, C.Y.: The Presence of Chondroitin Sulfuric Acid in Dentin, J. D. Res. 31: 506, 1952.
4.
Rogers, H.J. : Concentration and Distribution of Polysaccharides in Human Cortical Bone and the Dentin of Teeth, Nature164: 625, 1949.
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Krasnow, F.: Cholesterol and Lecithin in Teeth and Saliva, J. D. Res. 14: 226, 1934.
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Soyenkoff, B.C. , Friedman, B.K., and Newton, M.: The Lipids of Dental Tissues, J. D. Res. 30: 599, 1951.
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Leopold, R.S. , Hess, W.C., and Cartes, W.J.: Dentinal Protein : Bound Cholesterol, J. D. Res. 30: 837, 1951.
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Atkinson, H.F. , and Matthews, E.: An Investigation Into the Organic Components of the Human Tooth, Brit. D. J. 86: 167, 1949.
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Losee, F.L., Neidig, B.A., and Hess, W.C.: Amino Acid Composition of Dentin Protein, Proc. Soc. Exper. Biol. & Med. 76: 783, 1951.
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Hess, W.C., Lee, C.Y., and Neidig, B.A.: Dentinal Protein:Amino Acid Composition, J. D. Res. 31: 791, 1952.
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Manly, R.S. , and Hodge, H.C.: Density and Refractive Index Studies of Dental Hard Tissues, J. D. Res. 18: 133, 1939.
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Wellington, E.F.: An Ultramiero Method for Quantitative Determination of Amino Acids, Canad. J. Chem. 30: 581, 1952.
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Consden, R. , Gordon, A.H., and Martin, A.J.P.: Qualitative Analysis of Proteins: A Partition Chromatographic Method Using Paper, Biochem. J. 38: 224, 1944.
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Kemmerer, G. , and Hallet, L.T.: Improved Micro-Kjeldahl Ammonia Distillation Apparatus, Indust. & Engin. Chem. 19: 1295, 1927 .
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Neuman, R.E. : The Amino Acid Composition of Gelatins, Collagens and Elastins From Different Sources, Arch. Biochem. 24: 289, 1949.