1. Davies, D. T. P., and Weissmann, G., J. Cell Biol., 43, 29a (1969).
2. Davies, D. T. P., Krakauer, K., and Weissmann, G., Fed. Proc., 29, 784 (1970).
3. Reekallio, J., and Makinen, P. L., Experientia, 25, 929 (1969).
4. Becker, E. L., and Ward, P. A., J. Exp. Med., 129, 569 (1969).
5. Janoff, A., Biochem. J., 114, 157 (1969).