Reich, Nicholas G <br/><br/>
Empirical power and sample size calculations for cluster-randomized and cluster-randomized crossover studies.  [electronic resource] 

 -  PloS one  2012 
 - e35564 p.  digital 
<br/><br/> Publication Type: Journal Article; Research Support, U.S. Gov't, Non-P.H.S.; Research Support, U.S. Gov't, P.H.S. 
<br/><br/><label>ISSN: </label>1932-6203 
<br/><br/><label>Standard No.: </label>10.1371/journal.pone.0035564  doi 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Cluster Analysis<br/>Cross-Over Studies<br/>Humans<br/>Internet<br/>Models, Statistical<br/>Randomized Controlled Trials as Topic--statistics & numerical data<br/>Sample Size<br/>Software