1. 1) A. Kuninaka, S. Otsuka, Y. Kobayashi and K. Sakaguchi, Japanese Patent Application, 1957, 16141.
2. A. Kuninaka and K. Sakaguchi, Japanese Patent Application, 1957.
3. 2) A. Kuninaka, S. Otsuka, Y. Kobayashi and K. Sakaguchi, This Journal, 23, 239 (1959).
4. 3) H.S. Kaplan and L.A. Heppel, J. Biol. Chem., 222, 907 (1956).
5. 4) C.H. Fiske and Y. Subbarow, J. Biol. Chem., 66, 375 (1925).