Document mqjOa2RRKBJb1gNvq6OKMrJ8J

J-n crCERT HURTIN HALSEY, M. D. 121 EA ST 60TH ST R E E T NEW YO RK CITY TELEPHONE REGENT 4*1020 A pril 19, 1939. Dr. Rob er t A. Keh oe, ^ Ketterin g Laboratory of Applied P h ysiology, C in cin n at i, Ohio. Dear Dr. Keh oe: ' Your work on le a d in t o x ic a t io n h as in t e r e st e d me ver y much an d I am prom pted to ask ii* you have any knowledge of th e p at h o l ogy o f th e h e ar t and blood v e s s e l s , which would ten d t o show t h a t le a d p r o d u ces an y a c t u a l d ise ase of th e blood v e sse ls, or of the h eart (m uscle or v a l v e s) . * I r e a l i z e t h a t many t im e s a r t e r i o sc le r o si s i s sa id to be cau sed by le a d , and I h ave o ft e n sou gh t f o r evid en ce t h a t w ar r an t s such an a s s e r t i o n . I f you c o u ld h e lp me in t h i s m at t e r , I sh ould a p p r e c ia t e i t ver y m uch . With k in d e st r e g a r d s, I am X A ? 'J v i