Freedman, L S <br/><br/>
Assessing the gain in efficiency due to matching in a community intervention study.  [electronic resource] 

 -  Statistics in medicine  Aug 1990 
 - 943-52 p.  digital 
<br/><br/> Publication Type: Journal Article 
<br/><br/><label>ISSN: </label>0277-6715 
<br/><br/><label>Standard No.: </label>10.1002/sim.4780090810  doi 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Bias<br/>Efficiency<br/>Humans<br/>Models, Statistical<br/>Randomized Controlled Trials as Topic--statistics & numerical data<br/>Regression Analysis<br/>Research Design<br/>Sampling Studies<br/>Smoking Cessation--statistics & numerical data