NATIONAL INSTITUTE OF RADIOLOGICAL SCIENCES 157: 445-447, 1967) using the method with which the estimate for eet oPYU However, Dr. M. S. Sasaki, Dept. of bot syndrome was not apparent. a difference between the 175-rad group and the 70-rad group of the Se bmmed s met 3 o » - OL 9-1, 4-chome, Anagawa, Chiba-shi, Japan exposed Marshallese (Radiation Biology Research Communication 3: 3-21, 1968, in Japanese) from the data of Lisco and Conard (Science atomic bomb survivors was made 22 years after exposure (Nature 220: 1189-1193, 1968). Taking above mentioned facts into consideration, I would like to Suggest that cytogenetical examination be done on the selected cases in near future. This study is considered to be important to detect the late effects. | 3. Since Iam not a specialist in the field of radiation dosimetry, I asked an authority of our Institute. According to his opinion, the ways of estimation described in BNL report are reasonable, —_)[eee L In addition to these comments, I would like to make a proposal that Trust Territory Government request the United Nations to have § ' - Human Cytogenetics, Tokyo Medical and Dental University, has found an international scientific meeting on the effects of radiation-exposed people including the Marshallese. I believe that such a meeting is useful to dispel several misunderstandings. 217