Hayes, Richard J. <br/><br/>
Cluster randomised trials 

 - Boca Raton  CRC Press  2009 
 - xxii, 315p. p. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Clinical trials ;Cluster analysis
<br/><br/><label>Dewey Class. No.: </label>615.50724  / HAY