First Edition. paperback. Illustrated with tables & graphs. 14 pages (pp. 187-200) IN: The American Heart Journal, vol. 15, no. 2. 8vo, original gray printed wrapperss. St. Louis, 1938.
ALSO INCLUDED: Standardization of Precordial Leads in electrocardiography. A joint memorandum of a committee of the Cardiac Society of Great Britain and Ireland, and the Committee of the American Heart Association. 7 pages (pp. 107-108 & 235-239) IN: The American Heart Journal, vol. 15, nos. 1 & 2. St. Louis, 1938. Both nos. offered entire. Levy paper concerns the diagnosis of cardiac pain. GM 2867. GM 2868.