1. See review of cattle radioiodine studies by C. L. Comar, and R. H. Wasserman, in Progress in Nuclear Energy, Ser. VI (Pergamon Press London: 1956), 184–19
2. Wolff A. H., Public Health Reports, 72, 1121 (1957).
3. Halnan K. E., and E. F. Pochin, Brit. J. Radiol., 31, 581 (1958). These investigators assume the following values for infant vs. adult thyroids, respectively: a mass of 2 vs. 25 gm; a radioiodine uptake of 45 per cent vs. 30 per cent; 0 per cent vs. 10 per cent absorption of the gamma radiation; and complete absorption of the beta radiation in each case.
4. It is this fact which seems to have been overlooked in evaluating fallout doses of radioiodine. However, the importance of this fact was recognized in the case of the Windscale reactor accident in England; see, for example, Burch, P. R. J., Nature, 183, 515 (1959).
5. Oliner L., R. M. Kohlenbrener, T. Fields, and R. H. Kunstadter, J. Clin. Endocrinol. and Metab., 17, 61 (1957).