Fletcher, Robert H. <br/><br/>
Clinical epidemiology : 

 - 5th ed. 
 - Philadelphia   Wolters Kluwer  2014. 
 - xv, 253p.    ill.  
<br/><br/><label>ISBN: </label>9781451144475  
<br/><br/><label>Subjects--Topical Terms: </label><br/>Epidemiologic Methods.
<br/><br/><label>LC Class. No.: </label>RA652.2.C55  / F57