1. Mayer, J., Nutrition Abstr. and Rev., Part K, 25, 597; Part 2, 25, 871 (1955).
2. Mayer, J., Metabolism, 6, 435 (1957).
3. Marshall, N. B., Barrnett, R. J., and Mayer, J., Proc. Soc. Exp. Biol. Med., 90, 240 (1955).
4. Novelli, G. D., “Methods in Enzymology”, 3, 913, edit. by Colowick, S. P., and Kaplan, N. O. (Academic Press, New York, 1957).
5. Weng, S. Y., J. Biol. Chem., 55, 431 (1923).