Chang, Sonia <br/><br/>
M-mode echocardiographic techniques and pattern recognition / 
Sonia Chang 
 - Philadelphia :  Lea & Febiger,  1976 
 - xiii, 160 p. :  ill. ;  24 cm. 
<br/><br/><label>ISBN: </label>0812105559 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Echocardiography