Fletcher, Robert H. <br/><br/>
Clinical epidemiology :  the essentials / 
by Robert H. Fletcher, Suzanne W. Fletcher and Edward H. Wagner 
 - 3rd ed. 
 - Baltimore :  Williams & Wilkins,  1996 
 - 276 p. :  ill. ;  23 cm. 
<br/><br/><label>ISBN: </label>0683032690  RM64.36 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Epidemiologic Methods
<br/><br/><label>National Library of Medicine Call No.: </label>WA950  / .F614c 1996