Document pn5n8YwekdDzBeGq57MEqw67

FEDERAL AGENCY Public Health Service NATIONAL INSTITUTES OF HEALTH Bethesda 14, Md. NATIONAL INSTITUTE OF ARTHRITIS AND METABOLIC DISEASES NATIONAL CANCER; INSTITUTE NATIONAL INSTITUTE OF DENTAL RESEARCH NATIONAL HEART INSTITUTE NATIONAL INSTITUTE OF MENTAL HEALTH NATIONAL MICROBIOLOGICAL INSTITUTE NATIONAL INSTITUTE OF NEUROLOGICAL DISEASES AND BLINDNESS 7HECL1N1CAL CENTER' DIVISION OF RESEARCH GRANTS . July 31, 1953 Dr. R. A. Xehoe Kettering Laboratory College of Medicine University of Cincinnati Eden Avenue Cincinnati, Ohio Dear Dr. Kehoe: I am very grateful for your letter of April 16, regarding same of the results of your lead retention and excretion studies. Enclosed is a copy of a report concerning our worse with lead-210 in which you indicated an interest. The report indicates the sensitivity of our analytical method and indicates a- possible application to certain occupational hazards. This technique could readily be applied to animals irx metabolic studies of lead, although lead-203 would probably be a better choice of isotope because of its shorter half-life. Very truly,yours. Enclosure Victor E. Archer, M. D. Laboratory of Physical Biology National Institute of Arthritis & Metabolic Diseases