LUISADA, A A <br/><br/>
The low frequency tracings of the precordium and epigastrium in normal subjects and cardiac patients.  [electronic resource] 

 -  American heart journal  Oct 1952 
 - 545-64 p.  digital 
<br/><br/> Publication Type: Journal Article 
<br/><br/><label>ISSN: </label>0002-8703 
<br/><br/><label>Standard No.: </label>10.1016/0002-8703(52)90194-4  doi 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Cardiovascular Diseases--diagnosis<br/>Diagnostic Techniques, Cardiovascular<br/>Electrocardiography<br/>Humans