Halperin, M <br/><br/>
An aid to data monitoring in long-term clinical trials.  [electronic resource] 

 -  Controlled clinical trials  Dec 1982 
 - 311-23 p.  digital 
<br/><br/> Publication Type: Journal Article; Research Support, U.S. Gov't, P.H.S. 
<br/><br/><label>ISSN: </label>0197-2456 
<br/><br/><label>Standard No.: </label>10.1016/0197-2456(82)90022-8  doi 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Clinical Trials as Topic--standards<br/>Double-Blind Method<br/>Humans<br/>Mortality<br/>Research Design<br/>Statistics as Topic<br/>Time Factors