Chung, D K <br/><br/>
Electrocardiogram of the month. Two-step (master) exercise test.  [electronic resource] 

 -  The West Virginia medical journal  Dec 1971 
 - 375-6 p.  digital 
<br/><br/> Publication Type: Journal Article 
<br/><br/><label>ISSN: </label>0043-3284 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Angina Pectoris--diagnosis<br/>Electrocardiography<br/>Exercise Test<br/>Humans<br/>Male<br/>Methods<br/>Middle Aged