1. BAYLISS, R. I. S. (1952), Biochem..7., 52, 63.
2. BUSH, I. E. (1952), Biochem. 7., 50, 370.
3. Ciba Foundation Symposium;BUSH, I.E.,1952
4. BUTLER, G. C., and MARRIAN, G. F. (1937), 7. biol. Chem.' 119, 565.
5. J7. biol;BUTLER, G.C.; MARRIAN, G.F.;Chem,1938