Delman, A J <br/><br/>
Aortic ball variance.  [electronic resource] 

 -  American heart journal  Feb 1972 
 - 291-2 p.  digital 
<br/><br/> Publication Type: Journal Article 
<br/><br/><label>ISSN: </label>0002-8703 
<br/><br/><label>Standard No.: </label>10.1016/0002-8703(72)90159-7  doi 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Aortic Valve<br/>Heart Valve Prosthesis--standards<br/>Humans<br/>Phonocardiography