Aehlert Barbara <br/><br/>
Pocket reference for ECGs Made easy 

 - 5th ed. 
 - St.Louis  Elsevier  2013 
 - vii,123pg. 
<br/><br/><label>ISBN: </label>978023101080 
<br/><br/><label>LC Class. No.: </label>RC683.5  / E5  / A39