175. Holm, L.-E., Lundell, G., and Walinder, G. Incidence of malignant thy— roid tumors in humans after exposure to diagnostic doses of iodine~-131. I. 176. 177. 178. 179. Retrospective cohort study. J. Nat. Cancer Inet. 64(5): 1055-9 (1980). Holm, L.-E. Incidence of Malignant Thyrcid Tumors in Man After Diagnos— tic and Therapeutic Doses of Iodine-131. M.D. Thesis, Stockholm, 1980. McDougal, I.R. Thyroid cancer after iodine-131 therapy. JAMA 227: 438 (1974). Sheline, G.E., Lindsay, S., et al. Thyroid nodules occurring late after treatment of thyrotoxicosis with radioiodine. J. Clin. Endocrinol. Metab. 22: 8-18 (1962). Doniach, I. Effects of radiation on thyroid function and structure, in: Handbook of Physiology (Sect. 7: Endocrinology; III: Thyroid), pp. 359-75, M. Greer and D.H. Solomon, Eds., Williams & Wilkins, Baltimore, 180. 181. 182. 183. 184. 185. 186. 187. 1974. Safa, A.M., Schumacher, O.P., and Rodriguez~Antunez, A. Long-term fol- low-up results in children and adolescents treated with radioactive io- dine (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. JAMA 233: 1069-72 (1975). Beach, S.A. and Dolphin, G.W. A study of the relationship between x-ray dose delivered to the thyroids of children and the subsequent deve lop- ment of malignant tumors. Book, S.A. and Bustad, L.K. Phys. Med. Biol. 6: 583 (1962). Effects of radioiodine and x-ray on beagie pups, in: Annual Report, 1973, Radiobiology Laboratory, pp. 137-9, UCD 472-120, June 1973. Fochin, 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. 165, G.A. Harrison, Ed., Cambridge U. Press, 1978. United States Nuclear Regulatory Commission, Reactor Safety Study. An Assessment of Accident Risks in U.S. Commercial Nuclear Power Plants, Appendix 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 Na- tional Council on Radiation Protection and Measurements, NCRP Rep. No. 188. 189. 190. 55, Washington, DC, 1977. Book, S.A., McNeill, D.A., Parks, N.J., and Spangler, W.L. Comparative effects of iodine-132 and iocine-~131 in rat thyroid glands. Radiat. Res. 81: 246-53 (1980). _ _ Walinder, G., Jonsson, C.-J., and Sjoden, A.-M. Dose rate dependence in the goitrogen stimulated mouse thyroid. Acta Radiol. Ther. Phys. Biol. ll, 24-36 (1972). Vasilenko, I.Ia. and Klassovskii, Iu.A. Remote consequences of thyroid irradiation with radioactive .odine isotopes, in: Sb. Mater, Radiatsionnaia Endokrinologiia, pp. 17-18, A.A. Voitkevich, “d., Akad. Med. Nauk SSSR, 1967 (Trans., NIH-71-198). ~ 99 -