1. Elkind, M. M., and Sutton, H., Radiat. Res., 13, 556 (1960). Lockart, jun., R. Z., Elkind, M. M., and Moses, W. B., J. Nat. Cancer Inst., 27, 1393 (1961). Hornsey, S., and Silini, G., Radiat. Res., 16, 712 (1962). Till, J. E., and McCulloch, E. A., Radiat. Res., 18, 96 (1963). Littbrand, B., and Revesz, L., Nature, 203, 889 (1964).
2. Belli, J. A., and Andrews, J. R., J. Nat. Cancer Inst., 31, 689 (1963).
3. Elkind, M. M., Sutton, H., and Moses, W. B., J. Cell. Comp. Physiol., 58, Suppl. 1, 113 (1961).
4. Elkind, M. M., and Sinclair, W. K., in Current Topics in Radiation Research, edit. by Ebert, M., and Howard, A., 165 (North-Holland Publishing Co., Amsterdam, 1965).