Wann, L S <br/><br/>
Ball variance in a Harken mitral prosthesis. Echocardiographic and phonocardiographic features.  [electronic resource] 

 -  Chest  Dec 1977 
 - 785-7 p.  digital 
<br/><br/> Publication Type: Case Reports; Journal Article; Research Support, U.S. Gov't, P.H.S. 
<br/><br/><label>ISSN: </label>0012-3692 
<br/><br/><label>Standard No.: </label>10.1378/chest.72.6.785  doi 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Echocardiography<br/>Female<br/>Heart Valve Prosthesis--instrumentation<br/>Humans<br/>Middle Aged<br/>Mitral Valve--surgery<br/>Phonocardiography<br/>Silicone Elastomers