Document NE0GByYnb3MZ6nBYvMomeexnR

September 1?, 195U vr.wmmam 3771 West 130th Streets Cleveland, Ohio Dear Mr* Hefren* If you will have your physician Dr. B. P. Kottershall write to us advising us of the reason for further excretory analyses, we shall be glad to forward containers to you* Very truly yours, LWS sIS Las ber V/."'Sanders , 'Mii, \ \ \ \ `i