LUISADA, A A <br/><br/>
The duration of normal heart sounds.  [electronic resource] 

 -  British heart journal  Jan 1949 
 - 41-7 p.  digital 
<br/><br/> Publication Type: Journal Article 
<br/><br/><label>ISSN: </label>0007-0769 
<br/><br/><label>Standard No.: </label>10.1136/hrt.11.1.41  doi 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Heart<br/>Heart Murmurs<br/>Heart Sounds<br/>Humans<br/>Sound