1. Blahd, W. H., and Nordyke, R. A., Clin. Res. Proc., 5, 40 (1957).
2. Taplin, G. V., Meredith, O. M., and Kade, H., J. Lab. Clin. Med., 45, 665 (1955).
3. Pieroni, R. R., Wajchenberg, B. L., Gelman, A., Gon¸alves, V., Schnaider, J., and Gunther, H. (in the press).
4. Stowe, W. P., Delprat, G. D., and Weeks, Amer. J. Clin. Path., 3, 55 (1933).
5. Ishida, M., Inagaki, S., and Watanabe, E., J. Pharm. Soc. Japan, 73, 736 (1953).