Schamroth, Leo <br/><br/>
An introduction to electrocardiography / 
L. Schamroth ; edited by C. Shamrorth. 
 - 7th ed. 
 - Oxford [etc.] :  Blackwell Scientific Publications,  1990. 
 - xiii, 457 p. :  ill. ;  25 cm. 
<br/><br/>Includes bibliographical references and index 
<br/><br/><label>ISBN: </label>0-632-02411-9 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Electrocardiography