Hulley, Stephen B. <br/><br/>
Designing Clinical Research/ 

 - 3rd ed. 
 - Philadelphia:   LWW  2007. 
 - xv,367p. : 
<br/><br/>include index 
<br/><br/><label>ISBN: </label>9780781782104 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Research<br/>Medicine----Research----Methodology<br/>Epidemiology----Research----Methodology<br/>Clinical trials
<br/><br/><label>LC Class. No.: </label>WA950