Gordis, Leon <br/><br/>
Epidemiology 

 - 4th 
 - USA  Saunders Elsevier  2009 
 - 375p.  ix 
<br/><br/> Book 
<br/><br/><label>ISBN: </label>9781416040026 
<br/><br/><label>National Library of Medicine Call No.: </label>WA 105