HARING, O M <br/><br/>
Phonocardiography in patent ductus arteriosus.  [electronic resource] 

 -  Circulation  Oct 1954 
 - 501-10 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.10.4.501  doi 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Ductus Arteriosus<br/>Ductus Arteriosus, Patent--diagnosis<br/>Heart Murmurs<br/>Heart Sounds<br/>Humans<br/>Phonocardiography