Document 10oYo19JxryN6ELKDK84QMdoj

COPY ' -t U n iver sit y of Colorado Medical Center ll200 East Ninth Avenue Denver 7, Colorado March 28, 19$$ Mr. Manfred Boditch D ir ector o f Health and Safe t y Lead In d u st r ie s A ssociat ion li.20 Lexin gton Avenue New York 17, N. Y. Deal' I f f . Bow di t cn j At th e pr esen t tirae we ar e in agreement w ith Dr. Joh n ston e and Dr, Kehoe with r egar d t o th e pr oph ylactic u se o f Ca EDTA. For your in form ation we have been stu dyin g th e t o t a l 2i;-h r. excr et ion of Acad a ft e r treatm en t with in traven ou s as '.veil as o r al Ca l:UIV... Our fin d in gs in humans do not. agree with th e fin d in gs ox Reader on an im als at th e U n iver sit y of Pen n sylvan ia, in t h at we have found th e t o t a l excr et ion h as beam in cr eased w ith o r al Ca SDTA. Dr. Karr o f Riker Lab or at or ies r e ce n t ly had the opportu n ity of seein g t h ese r e su lt s and ju st l a s t week th e Hiker Lab or at or ies gave us a sm all gr an t t o con tin ue t h ese st u d ie s. Ve hope t h is c l a r i f i e s our p o sit io n in t h is d ebatable qu estion a t th e pr esen t tim e w ith you, and wish to sen d you our b est person al regard s. ) HFBskk Sin cer ely yours, Robert F. B e ll , M.D. Actin g Head D ivision o f In d u st r ial Medicine KE 0003326 N9770