Schamroth, L. <br/><br/>
An introduction to electrocardiography / 
L. Schamroth. 
 - 2nd ed. 
 - Oxford :  Blackwell Scientific,  1964. 
 - x, 165 p.  ill.  23 cm. 
<br/><br/> Includes index. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Electrocardiography.<br/>Electrocardiography.