1. Dolphin, G. W., and Purrott, R. J., IAEA-SM-143/8, 611 (International Atomic Energy Agency, Vienna, 1971).
2. Evans, H. J., in Human Population Cytogenetics (edit. by Jacobs, P. A., Price, W. H., and Law, P.), 192 (University Press, Edinburgh, 1970).
3. UNSCEAR, Report of the United Nations Scientific Committee on the Effects of Atomic Radiation (General Assembly Official Records, 24th Session, Supplement No.13 (A/7613), New York, 1969).
4. Norman, A., Sasaki, M. S., Ottoman, R. E., and Fingerhut, A. G., Blood, 27, 706 (1966).
5. Buckton, K. E., Smith, P. G., and Court-Brown, W. M., in Human Radiation Cytogenetics (edit. by Evans, H. J., Court-Brown, W. M., and McLean, A. S.), 106 (North Holland, Amsterdam, 1967).