AOO12S SIMEON T. CANTRIL. M. D. 1211 MARION @TREET SEATTLE 4, WABHINGTON November 29, 1956 See loos cee! Dr. Charles L, Dunhan, Director Division of Biology and Nedicine U.S. Atomic Energy Commission Washington 25, D.C. - a 69769 Dear Chuck: I have the copy of Dagts letter to you of November 20. Also I had an opportunity to talk with him today via telephone when he was in Seattle. I discussed the medical exposure problem with him namely from the standvoint that I felt that a contribution could be made here to a possibly more accurate estimate of diagnostic x-ray exposure in this particular population of versons up to 30 years of age, which from the genetic standpoint seems to be a cut-off. The various questions which are raised in the letter of November 20 can be settled when an outline of the study is finally decided upon. I offered mv help in preparing this outline which will give some indication of the magnitude of the survey. In this respect perhaps a similar survey done by James Sterner at Eastman Kodak would be valid. I appreciate that both of these may give perhaps more emmhasis to diagnostic exposure than the ceneral population in view of the medical care and preventive programs. Im any case I think it is worth exploring to see how much information might be gained before launching on the project. I took the liberty to tell Dr. Norwood that I thought you might through AEC authorize clerical assistance when the work actually came into being. I hope that I was not overoptimistic in this suggestion. I regret that I could not attend the ACBM meeting of November 26. I spent a very interesting two days at the Ann Arbor project with Dr. Hodges and Dr. Lampe and have sent a report to Jin Haggerty and Chuck Shilling, » Yours sincerely, Simeon T. Cantril, M.D. STC: bb cc: Dr. WV. D. Norwood 5001082 | “EDCINE,WEALTH & SAFETY - 2 - 7 | sr