Barbara Aehlert <br/><br/>
Ecgs made easy 

 - 3rd 
 - St louis  Mosby (elsevier)  2006 
 - 152 
<br/><br/><label>ISBN: </label>9780323039703 
<br/><br/><label>Dewey Class. No.: </label>616.1  / BAR/EC