1. Boyden, S. V., J. exp. Med.115 (1962) 453.
2. Yamamoto, T., Kihara, I., Morita, T., and Oite, T., J. immun. Methods26 (1979) 315.
3. Yamamoto, T., Kihara, I., Hara, M., Kawasaki, K., and Yaoita, E., Br. J. exp. Path.64 (1983) 660.
4. Yamamoto, T., Kihara, I., Hara, M., Yaoita, E., and Kawasaki, K., Jap. J. exp. Med.53 (1983) 275.
5. Ross, G. D., and Polley, M. J., Fedn Proc.33 (1974) 759.