Stephen B.Hulley <br/><br/>
Designing clinical research 

 - 3rd 
 - Philadelphia,  Wolters Kluwer:  2007. 
 - 367p. 
<br/><br/><label>ISBN: </label>9780781782104 
<br/><br/><label>Dewey Class. No.: </label>610.07  / HUL/DE