00829cam a22002771 4500 med48000046 DLC 20260227111609.0 810930s1948 nyu 000 0 eng c med48000046 (OCoLC)7804868 U.S. Army Medical Libr. Vi Vi DLC premarc RC681 .B65 616.12 Blakeslee, Howard Walter, 1880-1952. Know your heart. [1st ed. New York, 1948] 31 p. illus. 22 cm. Public affairs pamphlet, no. 137 "Prepared ... with the cooperation of the American Heart Association, Inc." "For further reading": p. 31. Heart Diseases Popular works. American Heart Association. 38833 38833