GORDIS, Leon. <br/><br/>
Epidemiology/ 

 - 4th 
 - Philadelphia;   Elsevier Inc.,  2009. 
 - xv,  375  p.  ill. 
<br/><br/> Includes   References and Index. 
<br/><br/><label>ISBN: </label>9781416040026 
<br/><br/><label>Dewey Class. No.: </label>614.4  GOR