Cluster randomised controlled trials: sample size calculations

BMJ ◽  
2013 ◽  
Vol 346 (may03 1) ◽  
pp. f2839-f2839 ◽  
Author(s):  
P. Sedgwick
Trials ◽  
2014 ◽  
Vol 15 (1) ◽  
pp. 184 ◽  
Author(s):  
Neil Corrigan ◽  
Michael J G Bankart ◽  
Laura J Gray ◽  
Karen L Smith

BMJ ◽  
1999 ◽  
Vol 318 (7195) ◽  
pp. 1407-1409 ◽  
Author(s):  
S. J L Edwards ◽  
D. A Braunholtz ◽  
R. J Lilford ◽  
A. J Stevens

Trials ◽  
2013 ◽  
Vol 14 (Suppl 1) ◽  
pp. O21
Author(s):  
Dawn Teare ◽  
Munya Dimairo ◽  
Alexandra Hayman ◽  
Neil Shephard ◽  
Amy Whitehead ◽  
...  

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