Document Dvg8bv1266rqZLjbYpvOL72B5

H ARVARD M E D I CAL SCH OOL DEPARTMENT OF PEDIATRICS Ch ild r en 's Hospital jO O J^ ongw ood^ Avenue 'Boston,.. Zebr.uary....&...13 8 Dr. Robert A. Kehoe Laboratory of Applied Physiology College of Medicine University of Cincinnati Cincinnati, Ohio Dear Dr. Kehoe: In the letter which you sent ne last ; June, you mentioned that you were preparing an article for publication describing the details of the dithizone method of analysis for lead. If this has been published I would appreciate a reprint. If not, could you send us the technique which you are now employing? I vronder if the dithizone modified method which you are using has altered your opinion as to the normal blood levels. I am, of course, interested particularly in the younger age group. Sincerely yours, cjc 0 > 0 32. Kenneth D. BlacKfan, M.D. KB 0020093