Designing clinical research / 
Stephen B. Hulley ... [et al.]. 
 - 4th ed. 
 - Philadelphia, PA :  Wolters Kluwer/Lippincott Williams & Wilkins,  c2013. 
 - xiii, 367 p. :  ill. ;  26 cm. 
<br/><br/>Includes bibliographical references and index. 
<br/><br/><label>ISBN: </label>1608318044 (pbk.) 9781608318049 (pbk.) 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Clinical trials.<br/>Medicine--Research--Methodology.<br/>Epidemiology--Research--Methodology.
<br/><br/><label>Dewey Class. No.: </label>610.72  / DES 2013