10% ar treatment aud other couplicatiog the absence of te radiation in response that ¢ The LDey, will be increased by the use of antibiotics to controt factors. infections, by platelet transfusions to control at com; the bleeding, and Stina: hemopofetic molecular regulators now available to stinulate an earlier recovery of hematopoiesis. noay 4; In 1947 hewell (21) surveyea the opinion of tadiologists of the 56% lethal dose of radiation in tan. deve ls Their cstinatedl varied considerably ana the average was close to 450 rad, the commonly stated LDxo. Nany sources of cata bear #@UTI bie: : the LDey Value for man and each has BNC Tease These sources include radiation mortality data “oneal several shortcomings. large animals, on the 2) es the data from the Japanese exposed at Hiroshima ane ( al, Reta py Berman large animals have a low LUcg. wan tay have a low Lisp. It would be logical from this. to argde fat 4 extrapolate from animals to man. ie fed fPaes rd would have a rather good idea of the radiation Lbey, for man, t: In principle, at least, one might. } I 3 a response of animals Fo prays RieCre estiating human Lisge in general, “ This“ 5 ee ; bao Oe It as believed that . we te Lp, f 3 ee The re: TR tin: and uniform totel becy irradiation would anchor the lower part of |the. in dugs and swine, if . the dose of radiation well alan lethal dose rarge. If one adds 50 rad about 5-107, of approximately 225 rad, as for gugs, the 96% mortality is abeut 500 rad. . pte “so , = a ce or ae Pe athe, eh into the to the es ; Bat cet con, 7 Bas, wore ex. that the Marshallese received, one has a probable low lethaligy ae en aeRithig tag -98~ £7} od ee If one uses the Liots “xposed increaseg by 100 rad over that receivea by the Marshallese, ve aac a won al iy Certainly, Geel, same slog The midpoint 1 - sy benef the harshallese were’ It would appear tha . mrcuny 1 ig, * Figure & illustrates an apbi a near maximal sublethal dose f ‘radiation. curve, taens tus, ae Bmetec, pt that in Hiroshima anu hagasaki where many individuals were exposedy the | Sant ined In fact, one does not really know how to fae ore fs et bees eat MB the morz