were seer. in Tokyo University Hospital and blood counts were performed by Dr. Sears, and Miss Tsuchitori,*thief henatology technician. be examined after staining at ABCC in Hiroshima. Blood smears were made and will Bone marrow specimens were obtained 16 March 1954 from these two patients by Dr. Wiyoshataes"oneunctained slide of marrow from each patient was given to ABCC. in Hiroshima. These will be examined after staining . Dr, Miyoshi also had stained slides of marrow from patients Masuda Sanjiro and Yamamoto Tadushi, These were examined 19 March 1954 by Dr. Sears but conditions were such that only low power lens of miscroscope could be used. No abnormality of either marrov was observed under these circumstances. Reports of blood counts on Masuda Sanjiro and Yamamoto Tadashi performed by Yaizu and Tokyo University Hospitals are tabulted below as well as the counts performed by ABCC members. 20 March 1954 ~ The 21 patients at Yaizu were visited but ABCC staff were not permitted to obtain any blood or bone marrow specimens. Reports of blood counts performed by Yaigu staff are tabulated below. Blood slides had been made 17 March 1954 on all patients and sent to Tokyo Univer sity Hospital. On 22 March 1954 these slides vere examined by Dr. Sears and Miss Tsuchitori. Differential count of 100 cells was performed on each specimen as vell as a thorough low povrer lens study. In general, these blood smears, while adequate, were not of the ouality considered desirable by ABCC. The smears were made on glass slides rather than cover slips and the latter method is considered to give greater accuracy. There was distortion of many White blood cells so thet identification was rendered Mifficult. The stain was lighter than that used _by ABCC and recognition of platelets was especially unsatisfactory. However, a geners1 impression of White blood cell distribution, am Red blood cell and platelet \ppearance could be obtained and these are tabuleted below. There was satisfactory “reenent between reported White blood counts and appearance of “hite cells on ides; i.e., there was an abundance of cells on stained slides whose reported counts were normal or slightly elevated and an apparent paucity of cells on the slide from Misaki Yoshio (T-16) whose reported White cell count was 2900 on 17 March 1954. The blood slide from Suzuki Shinzo (T-19) hed apparently become damaged and only a small portion of the material remained, could not be observed satisfactorily. fe een ee wo ieee oreere ee Red cells and platelets - The patient appears to have a definitely .

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