1. Epps, H. M. R. (1944) Studies on bacterial amino-acid decarboxylases. 2. l(-)-Tyrosine decarboxylase from Streptococcus faecal is. Biochem. J. 38, 242–249.
2. Umbreit, W. W., Bellamy, W. D. & Gunsalus, I. C. (1945) The function of pyridoxin derivatives: A comparison of natural and synthetic codecarboxylase. Arch. Biochem. Biophys. 7_, 185–199.
3. Baddiley, J. & Gale, E. F. (1945) Codecarboxylase function of ‘pyridoxal phosphate’. Nature 155., 727–728.
4. Sloane-Stanley, G. H. (1949) The use of tyrosine apodecarboxylase of Streptococcus faecal is R for the estimation of codecarboxylase. Biochem. J. 44, 567–573.
5. Boxer, G. E., Pruss, M. P. & Goodhart, R. S. (1957) Pyridoxal- 5-phosphoric acid in whole blood and isolated leukocytes of man and animals. J. Nutr. 623–636.