1. Blumberg, H., and Grady, H. G., Arch. Path., 34, 1035 (1942).
2. Blumberg, H., and McCollum, E. V., Science, 93, 598 (1941).
3. Chaikoff, I. L., and Connor, C. L., Proc. Soc.Exp. Biol. and Med., 43, 638 (1940).
4. Chaikoff, I. L., Eichorn, K. B., Connor, C. L., and Entenman, C., Amer. J. Path., 19, 9 (1943).
5. Daft, F. S., Sebrell, W. H., and Lillie, R. D., Proc. Soc. Exp. Biol. and Med., 48, 228 (1941); 50, 1 (1942).