Document 5YzgdK6e4GZaZQ0OwE5eYK10

HARVARD M EDICAL SCH O O L DEPARTMENT OF PEDIATRICS Ghildren't fffospitel JOOJjngxeotdAvenue `Boston,........r .m e...22:jL. 193 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 will be 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 J Very sincerely, mg Kenneth D. Blaekfan, M.D