ZALTER, R <br/><br/>
Phonocardiography. II. Appraisal and critical analysis of existing systems.  [electronic resource] 

 -  The American journal of cardiology  Jul 1959 
 - 16-23 p.  digital 
<br/><br/> Publication Type: Journal Article 
<br/><br/><label>ISSN: </label>0002-9149 
<br/><br/><label>Standard No.: </label>10.1016/0002-9149(59)90189-4  doi 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Heart Murmurs<br/>Heart Sounds<br/>Humans<br/>Phonocardiography