NATIONAL INSTITUTE OF RADIOLOGICAL SCIENCES 9-1, 4-chome, Anagawa, Chiba-shi, Japan Report to the Special Joint Committee Concerning Rongelap and Utirik Atolls, Congress of Micronesia This report was preapred in response to the request from the Special Joint Committee. The comments in this report are arranged in the same order of the subjects of discussion in Memorandum of Understanding which I received on September 21, 1972, Comments on: l-a, I think that medical examination of the exposed Marshallese on once a year basis is justifiable considering an island situation. However, since the immigration into other islands of the Rongelapese and Utirikese is unexpectedly frequent, I feel that it is necessary to take firm hold of actual circumstances. For this purpose, those who bear the responsibility of health contral of the Rongelapese and Utirikese should inform the Trust Territory Government and Dr. Conard of these circumstances periodically. These actions will be very useful for the following examinations. i-b. The present AEC team's examination methods which seem to attach importance to thyroid function are adequate to protect the health of exposed people. mk However, when we consider that the radiation health control forms a link in the chain of general health control and that detection of subtle late effects in the exposed people is necessary, my) me 213