Shade, Bruce. <br/><br/>
Practicing ECGs / 
Bruce R. Shade. 
 - 1st ed. 
 - Boston :  McGraw-Hill,  2008. 
 - vi, 490 p. +  1 CD-ROM. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Electrocardiography--Problems, exercises.