Medical survey and clinical Trials <br/><br/>
Medical survey and clinical Trials: Some Methods and Application of Group Research in Medicine 

 - New York  oxford university Press  1959 
 - ix,328p.  ill. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Medical Research
<br/><br/><label>LC Class. No.: </label>MED 852  / W5