Document 4MQQrz2OGayN7Q8gGn1beGdx

THE JEFFERSON MEDICAL COLLEGE OF PHILADELPHIA 1025 WALNUT STREET 3 DEPARTMENT OP PREVENTIVE MEDICINE OlViStON OP INDUSTRIAL MEDICINE March 31, 1953 Dr. Robert A. Kehoe Kettering Laboratory University of Cincinnati College of Medicine Eden -avenue Cincinnati 19, Ohio Lear Doctor Kehoe: I wish to thank you sincerely for having gone over our material with such interest. Your remarks are greatly appreciated and, with your permission, I would like to discuss them at a later date. Today, I would mention only that you are absolutely right in assuming that in certain cases the blood lead levels shift back to the initial high values or even higher ones. We are working on modifications of the therapy in order to avoid such happenings. However, I will discuss this later on and send you the experimental and clinical material we have gathered meanwhile. Regretting that I shall not have the privilege of meeting you in Los Angeles, I am, with best regards. Sincerely yours. H. Brieger, M. D Professor of Industrial Medicine and Director of the Division 0008632