175. Holm, L.-E., Lundell, G., and Walinder, G. I. 176. 177. 178. 179. 180. 181. 182. 183. 184. 185. 186. 187. Incidence of malignant thy- roid tumors in humans after exposure to diagnostic doses of iodine-131l. Retrospective cohort study. (1980). Holm, L.-E. J. Nat. Cancer Inst. 64(5): 1055-9 Incidence of Malignant Thyroid Tumors in Man After Diagnos- tic and Therapeutic Doses of Iodine-131. McDougal, I.R. (1974). M.D. Thesis, Stockholm, Thyroid cancer after iodine-131 therapy. Sheline, G.E., Lindsay, S., et al. Thyroid nodules occurring late after treatment of thyrotoxicosis with radioiodine. Metab. 22: 8-18 (1962). Doniach,I. 1980. JAMA 227: 438 J. Clin. Endocrinol. Effects of radiation on thyroid function and structure, Handbook of Physiology (Sect. 7: in: Endocrinology; III: Thyroid), pp. 359-75, M. Greer and D.H. Solomon, Eds., Williams & Wilkins, Baltimore, 1974. Safa, A.M., Schumacher, 0.P., and Rodriguez-Antunez, A. Long-term fol- low-up results in children and adolescents treated with radioactive iodine (1311) for hyperthyroidism. New Eng. J. Med. 292: 167-71 (1975). Rallison, M.L., Dobyns, B.M., Keating, F. Jr., Rall, J.E., and Tyler, F.H. Thyroid nodularity in children. Beach, S.A. and Dolphin, G.W. JAMA 233: 1069-72 (1975). A study of therelationship between x-ray dose delivered to the thyroids of children and the subsequent development of malignant tumors. Phys. Med. Biol. 6: 583 (1962). Book, S.A. and Bustad, L.K. Effects of radioiodine and x-ray on beagle pups, in: Annual Report, 1973, Radiobiology Laboratory, pp. 137-9, UCD 472-120, June 1973. Pochin, E.E. Radiation exposure from the use of radioiodine in thyroid disease. Proc. Roy. Soc. Med. 57: 564-5 (1964). Pochin, E.E. Frequency of induction of malignancies in man by ionizing radiation, in: Handbuch der Medizinischen Radiologie, pp. 341-55, 0. Olsson et al., Eds., Springer, Berlin, 1972. Prior, I.A.M. et al. The Tokelan Island migrant study, in: Population Structure and Human Variation, p. Press, 1978. 165, G.A. Harrison, Ed., Cambridge U. United States Nuclear Regulatory Commission, Reactor Safety Study. An Assessment of Accident Risks in U.S. Commercial Nuclear Power Plants, Ap- pendix VI, Calculations of Reactor Accident Consequences, WASH 1400, NUREG-75/014, U.S. NRC, Washington, DC, 1975; Protection of the thyroid gland in the event of releases of radioiodine, Recommendations of the Na188. 189. 190. tional Council on Radiation Protection and Measurements, NCRP Rep. No. 55, Washington, DC, 1977. Book, S.A., McNeill, D.A., Parks, N.J., and Spangler, W.L. Comparative effects of iodine-132 and iodine-131 in rat thyroid glands. Res. 81: 246-53 (1980). Walinder, G., Jonsson, C.-J., and Sjoden, A.-M. the goitrogen stimulated mouse thyroid. ll, 24-36 (1972). Vasilenko, I.Ia. and Klassovskii, Iu.A. Radiat. Dose rate dependence in Acta Radiol. Ther. Phys. Biol. Remote consequences of thyroid irradiation with radioactive iodine isotopes, in: Sb. Mater, Radiatsionnaia Endokrinologiia, pp. 17-18, A.A. Voitkevich, Ed., Akad. Med. Nauk SSSR, 1967 (Trans., NIH-71-198). - 99 -