Document MG5rK6MEro7xexXrGY9xXyqbj

'. . H ARVARD M E D I CAL SCH OOL DEPARTMENT OF PEDIATRICS Qhildrtn 's Hospital 30 0 J^ ongwood sAvenue 'Boston, j g j..................................................... .................. 7 \ Dr. Robert, A. Kehoe, ' Kettering Research Laboratory, University of Cincinnati Medical School, Cincinnati, Ohio. Dear Dr. Kehoe: Thank you very much for your letter. It vail he very helpful to us as we see so many patients with lead poisoning. I would also appreciate knowing the technic which you have employed and where we could secure the lead lumbar puncture needles. Very sincerely, mg Kenneth D. Blackfan, M.D. K E 0020099