Gordis, Leon,  1934- <br/><br/>
Epidemiology / 
Leon Gordis. 
 - 3rd ed. 
 - Philadelphia :  Elsevier Saunders,  c2004. 
 - xi, 335 p. :  ill. ;  26 cm. 
<br/><br/>Includes bibliographical references and index. 
<br/><br/><label>ISBN: </label>0721603262 1416025308 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Epidemiology.<br/>Epidemiologic Methods.
<br/><br/><label>LC Class. No.: </label>RA651  / .G58 2004 
<br/><br/><label>National Library of Medicine Call No.: </label>WA 105  / G661e 2004