175. Holm, L.-E., Lundell, G., and Walinder, G. Incidence of malignant thy- roid tumors in humans after exposure to ilagnostic doses of iodine-131. I. Retrospective cohort study. J. Nat. Cancer Inst. 64(5): 1055-9 (1980). 177. Holm, L.-E. Incidence of Malignant Thyroid Tumors in Man After Diagnostic and Therapeutic Doses of Ilodine-131. M.D. Thesis, Stockholm, 1980. McDougal, I.R. Thyroid cancer after iodine-131 therapy. JAMA 227: 438 178. Sheline, G.E., Lindsay, S., et al. 176. 179. (1974), Doniach,I. 181. 182. 183. 184. 185. 186. 187. J. Clin. Endocrinol. Effects of radiation on thyroid function and structure, Handbook of Physiology (Sect. 7: 359-75, M. Greer and D.H. 180. Thyroid nodules occurring late after treatment of thyrotoxicosis with radioiodine. Metab, 22: 8-18 (1962). 1974, Solomon, in: Endocrinology; III: Thyroid), pp. Eds., Williams & Wilkins, Baltimore, 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. JAMA 233: 1069-72 (1975). Beach, S.A. and Dolphin, G.W. A study of therelationship between x-ray dose delivered to the thyroids of children and the subsequent develop- ment of malignant tumors. Book, S.A. and Bustad, L.K. pups, in: Annual Report, Phys. Med. Biol. 6: 583 (1962). Effects of radioiodine and x-ray on beagle 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, O. 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 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. 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. Vasilenko, Remote consequences of thyroid Ll, 24-36 (1972). I.Ia. and Klassovskii, Iu.A. 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 +