Rubin, I L <br/><br/>
Electrocardiograms of the month.  [electronic resource] 

 -  New York state journal of medicine  May 1972 
 - 1049-50 p.  digital 
<br/><br/> Publication Type: Journal Article 
<br/><br/><label>ISSN: </label>0028-7628 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Electrocardiography<br/>Heart Block--diagnosis<br/>Humans