Fletcher, Robert H. <br/><br/>
Clinical epidemiology  the essentials 
Robert H. Fletcher, Suzanne W. Fletcher. 
 - Philadelphia  Lippincott Williams and Wilkins  2005 
 - xv, 252p.: ill; 23cm. 
<br/><br/><label>ISBN: </label>9780781752152 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Clinical Epidemiology Epidemiologioc Methods. 
<br/><br/><label>Dewey Class. No.: </label>614.4  / F55C