MASSINI, R <br/><br/>
About the heartbeats.  [electronic resource] 

 -  Schweizerische medizinische Wochenschrift  Jun 1948 
 - 581-5 p.  digital 
<br/><br/> Publication Type: Journal Article 
<br/><br/><label>ISSN: </label>0036-7672 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Heart Sounds<br/>Humans