( AQS797 BROOKHAVEN NATIONAL LABORATORY ASSOCIATED UNIVERSITIES, INC, UPTON, L. I., Ne Ye Ry September 25, 1957 Dear or. Chuck, I am anxious to formulate plans for studies to be carried out on the annual medical survey to be conducted on the Marshallese in March, 1958, It is an- ticipated that three weeks will be spent on Rongelap Island and several days on Majuro Island, im carrying out the examination, Complete history, physical } alla and laboratory examinations of a basic nature will be carried out as in the past, However there are special studies that should be considered and I would like to outline my thinking on the subject at this time and would appreciate your comments, Keeping in mind the limited facilities and personnel with which the examination will be conducted as weil as the language barrier difficulty, it would seem to me the priority for special studies should be based on the following consider1, Those studies which have revealed positive findings in the past in re- 2. Studies based on known long term effects of radiation in human beings, gard to possible radiation effects should be pursued with greatest vigor, I refer to )a) the hematological effects, (b) growth and development studies in children, (c) beta lesions of the skin and (d) body burden of radioisotopes, particularly in the Japanese and animals, COLLECTION —-22ababe6 |_- & REPOSITORY RECS ROY Cc ane WAMU ASTON Na Tie LAU BOX No. FOLDER ations: Such studies include effects on aging and longevity, incidence of degenerative diseases, malignancy (leukemia, etc,) fertility, cataracts, and genetic effects, 3, Studies of positive findings common to both exposed and unexposed Marshall- ese people which may have a direct influence on the future prognosis of the long term effects of radiation, Such findings include the tendency to anemia (low hematocrits), high incidence of parasitism, high total proteins and gamma globulin of the sera, high incidence of congenital defects, Of less priority would be studies of the homogeneity of the population, psychological studies, etc, Purther elaboration on the various studies in these different categories follows, 1, (a) Hematological, It is anticipated that three complete blood studies on each person including WBC, differential counts, platelet counts and hematocrits, will be conducted over the three week period as was done last year. In view of the fact that the lymphocyte and platelet mean counts have remained slightly below the mean counts of the unexposed groups it would be desirable to investigate the possibility of lowered reserve canacity of the hemapoetic tissues for these blood elements, For instance, it might be possible to test for lymphopoetic capacity by challenging with some lymphocytic stimulating substance (pertussis vaccine?) , or platelet response by stimulating platelet production by some means, Possibly radioiron uptake studies micht be of value in evaluation erythropoetic integrity, Do you have any suggestions alonz this line? BEST COPY AVAILABLE 1181956 19312 4

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