246 Health Physics (presented m Table 9) deemed to be appropriate for use im realistic mterma] dose reconstruction for exposures to fallout from nuclear tests conducted m the Marshall Islands Acknowledgments—This work was supported by the Intra-Agency agree mentbetween the NabonalInsbtute of Allergy and Infectious Diseases and the National Cancer Institute, NIATD agreement #¥2 Al S077 and NCT agreement $Y3-CO-S117 The authors would hike to thank J D Hamson of the Health Protection Agency (HPA), UK, for his review and comments on an earher draft of this paper REFERENCES Adams CE, Farlow NH, Schell WR The composition, struc tures, and ongins of radioactive fallout partcles San Francisco, CA US Naval Rachological Defense Labora tory, Report TR 209, NSO81 001, 1958 Anspaugh LR. Stucies on solubihty of fallout particles result ing from atmosphenctests of nuclear weapons Bethesda, MD. 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