Eldridge, Sandra Kerry, Sally <br/><br/>
A practical guide to cluster randomised trials in health services research 

 - Chichester :  John Wiley,  2012 
<br/><br/> Research  Randomised trials  Sample size  Research design  research ethics 
<br/><br/><label>ISBN: </label>9780470510476 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Research
<br/><br/><label>Dewey Class. No.: </label>610.730721 ELD