Randomised controlled trials?  [electronic resource] 

 -  British medical journal  Nov 1979 
 - 1244-5 p.  digital 
<br/><br/> Publication Type: Journal Article 
<br/><br/><label>ISSN: </label>0007-1447 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Clinical Trials as Topic--methods<br/>Random Allocation