Frye, R L <br/><br/>
Ultrasonic imaging of the heart.  [electronic resource] 

 -  Mayo Clinic proceedings  May 1978 
 - 339 p.  digital 
<br/><br/> Publication Type: Editorial 
<br/><br/><label>ISSN: </label>0025-6196 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Echocardiography<br/>Heart Defects, Congenital--diagnosis<br/>Humans