Luisada, A A <br/><br/>
Letter: Heart sounds by echo.  [electronic resource] 

 -  Circulation  Sep 1976 
 - 526-8 p.  digital 
<br/><br/> Publication Type: Journal Article 
<br/><br/><label>ISSN: </label>0009-7322 
<br/><br/><label>Standard No.: </label>10.1161/01.cir.54.3.526  doi 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Echocardiography<br/>Heart Auscultation<br/>Heart Block--physiopathology<br/>Heart Sounds<br/>Heart Valves--physiopathology<br/>Humans