Sackett,David L <br/><br/>
Clinical Epidemiology : A Basic Science for Clinical Medicine 

 -  Little Brown & Co  1991 
 - 441 
<br/><br/><label>ISBN: </label>0-316-76599-6 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Epidemiology
<br/><br/><label>National Library of Medicine Call No.: </label>WA950 S 1991