Helfant, Richard F. <br/><br/>
Essentials of Cardiac Arrhythmias 
By Richard H. Helfant 
 - Second Edition 
 - Philadelphia  W.B. Saunders Company  1980 
 - xi, 389 pages, 25 cm. 
<br/><br/> include index 
<br/><br/><label>ISBN: </label>0-7216-4626-3 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Arrhythmia
<br/><br/><label>Dewey Class. No.: </label>616.128 B41