Document 5D0bxzNJGVaKy5MoO9qDJVxrz

1P'JK SECTION ON CLINICAL BIOCHEM ISTRY D R .A R N O LD E .O S T E R B E R G MAYO CLINIC R O C H E S TE R , M IN N E S O TA y November 22, 1937 D r. R o b e rt A. Kehoe K ettering Laboratory College of liedicine C in c in n a ti, Ohio Dear Doctor Kehoe: I reg ret the delay in replying to your l e t t e r o f October 20. The c a s e you m ention came t o my a t t e n t i o n s e v e r a l y e a r s ago and ab t h a t tim e I made no r e c o r d o f t h e p a t i e n t ' s name o r c l i n i c number. In searching through our f ile s I have not been able to lo cate the h isto ry under the index heading of lead poisoning nor have I been ab le to find any c r o s s i n d e x which w o u ld g iv e me a c l u e . .As I to ld D octor Edgar in our c o n v e rsa tio n , our im pression at th e tim e th e p a t i e n t was h ere was t h a t th e nervous system symptoms were a t t r i b u t a b l e t o t e t r a - e t h y l l e a d . I am in d e e d s o r r y t h a t I cannot give you s p e c ific d e t a ils as to th e fin d in g s and th e c l i n i c a l h is to r y . Appreciating your obviously intense in te re s t, I am Sincerely yours, AE0;HC