1. Allibone, E. C. and Finch, E. (1945). Arch. Dis. Childh., 20, 169.
2. ,and Baar, H. S. (1946). Ibid., 21, 76.
3. Bueding, E., and Wortis, H. (1940). J. bio. Chem., 133, 585.
4. Stein, M. H., and Wortis, H. (1941). Ibid., 137, 793.
5. ,Wortis, H., and Stern, M. (1942). J. Clin. Invest.