tent, and increased retention of BSP, etc. were observed in most cases. One of the patients, who was pancytopeni€ at about the 4-7th week, died from liver damage 206 days after the A. Interval Histories Their occupations in 1964 were as follows: Fisheries, including pelagic fisheries-.-.- 3 Seaman ccccccceceecececceeete cece essen eeeaeeenny l exposure. In other patients, liver function gradu- Labourers -c:cccccccceccete cette teet vette tneene ees 8 Farmer ccccccecsescececetetttetctetecttseeeeentneees 1 disturbances have not been found. For example, CCF test was positive in most of the patients in 1955 survey C1} years), while CCF test in 1957 examinations was negative in all the cases. 6. Other Studies The study of leucocyte chromosomes was made The with peripheral blood culture method. results of the study, however, were not sufficient Personal business «+000 rrr 4 Telegraph operator... I Technical official -- -c:vcccreereeeeteeee es 1 Occupation unknown oes 1 ally recovered, and clinically significant liver enough to be presented. Ophthalmological examinations showed slight lenticular opacities in several cases, but, these have not been related to the former exposure yet. form medical survey on these irradiated persons Physica] Examinations The routine physical examinations revealed the following: In 10 cases among the 18 examined, livers were palpable 4-2 finger breadth belowr. costal margin on an annual basis. However, sufficient examina- at mid-clavicular line, but they were soft and tion was impossible by several reasons. This 1964 survey was carried out as follows: 1) Thirteen persons were examined at the National Institute of Radiological Sciences, and one person at the Tokushima Univer- not cirrhotic. Case K-8 developed r. pulmonary phthisis in Content of Na, K, P and Ca in serum was normal. lit. 1964 Medical Survey .\s already mentioned, we have tried to per- 1955 and received chemotherapy. At present, Four persons were examined by Dr. Ku- matori, et al. at the Yaizu City Hospital as proved by ECG. outpatients. required. The period of hospitalization was 3-6 days. The 1964 survey was performed from the end of January and finished at the beginning of ‘May. During this period, Dr. R. A. Conard from Brookhaven National Laboratory, the Head of U.S.A.E.C. Medical Survey Team on Marshallese exposed to fallout on 1 March 1954, visited Japan to be on hand for the examinations of Japanese fishermen. Dr. T. Kumatori, National Institute of Radiological Sciences, went to the Marshall Islands with Dr. Conard, and coope- rated with U.S. Medical Survey Team for about 3 weeks. This exchange visit was valuable for understanding of radiation effects on both Japanese and Marshallese exposed people. ee ae B. only small fibrotic foci are observed in r. subclavicular area on chest X-ray film. Systolic murmurs were heard at the apex of heart in K-10, and r, bundle-branch block was sity Hospital, under hospitalization. 2) MP NC Ee The interval medical histories were summarized in page 2 and Table 2. Several diseases contracted after the release from the hospitals did not seem to be late effects. Since the 1963 survey no significant disease has occurred. Their children are healthy, but detailed medical cxaminations of the children have not been carried out yet. LLORES Se LYRE tae No medical treatment was Case T-7 was proved glucosuria. Detailed medical examinations are to be done at Yaizu City Hospital. Cases T-2, K-l, and K-6 showed slightly elevated minimum blood pressure (94, 98, 98, respectively). C. Skin Lesions Residual skin changes in areas previously ¢xhibiting beta burns werestill observed in some cases. Most remarkable residual changes were shown in abdominal wall (T-6, K-2, 4, 5, 7, 11, 12, 13). Pigmentation, depigmentation andteleangiectasia were observed macroscopically (Plate 1). His- OT ETE AT TRIE ome " aaa re ’ ” " 7 ~~