on patients. BERGE: Okay. What kind of radio biclogical experiments did you do on mice and rats and other living beings? KOHN: Well, objective, let's see. het, First of all, my primary or Dr. Stone's primary objective was to study the relative biological effectiveness of (nigh energy beam. . Anrd=where the synchrotron took a long time to get started, we *thesefpxe wo ; collaborated with other people in Texas and in New York in doing the RBE on their tagh Leg machines. My collaborator in the laboratory was —-2—wernse=y—=—che namees@t Shirley Gunter, wkte@esea microbiologist. ti Cero Dr. Gunter went et. to each one of these laboratories and did her standard tésting sea) htt we 4 Standard testing in San Francisco on a million volt nr machine, which they no longer have, but which was running at that time. Or SO, 5 West='r='66% Warren Sinclair, who was the Texas .. ope he putonmatconal Cbinrling wv’ collaborator, and I wrote a review e@jthe relative biological PHe Tos phe effectiveness of high energy Piietons and electrons. accomplished rete®y what ™ wi By the laboratory_o fy As — — a OU ee ee a. So, we at least what my abiv was interested in age at exposure and the late affects of radiation. It makes a difference whether youradiate the animal when he's young or when he's old, GpuAddaay. 5 a Coleen We published a number of papers on that ole UT 4 Sapte at Eta is el CqimenGuttman; desmmteatie nettcreshag, the last reference, tells about that. Then I did i heeta i MAd/