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2. Bray, H. G., Gregory, J. E., and Stacey, M. (1944). Ibid., 38, 142.
3. Haworth, W. N. (1947). J. chem. Soc., p. 582.
4. Hotchkiss, R. D. (1948). Arch. Biochem., 16, 131.
5. Histochimie Animale,;Lison, L.,1936