1. Schwarz, V., Goldberg, L., Komrower, G. M., and Holzel, A., Bio. chem. J., 62, 34 (1956).
2. Isselbacher, K. J., Anderson, E. P., Kurahashi, K., and Kalckar, H. M., Science, 123, 635 (1956).
3. Hsia, D. Y.-Y., Amer. J. Human Genetics, 9, 98 (1957).
4. Holzel, A., and Komrower, G. M., Arch. Dis. Ch., 30, 155 (1955).
5. Anderson, E. P., Kalckar, H. M., Kurahashi, K., and Isselbacher, K. J., J. Lab. and Clin. Med., 50, 469 (1957), as described in “The Determination of Congenital Galactosemia”, Tentative Technical Bulletin, No. 600 (Sigma Chemical Co., St. Louis 18, Missouri).