LUISADA, A A <br/><br/>
Triple and quadruple rhythms of the heart.  [electronic resource] 

 -  Tufts medical journal  May 1949 
 - 84-91 p.  digital 
<br/><br/> Publication Type: Journal Article 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Heart<br/>Heart Rate<br/>Humans