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Sample size calculations for cluster randomised controlled trials with a fixed number of clusters.
Hemming K, Girling AJ, Sitch AJ, Marsh J, Lilford RJ. Hemming K, et al. BMC Med Res Methodol. 2011 Jun 30;11:102. doi: 10.1186/1471-2288-11-102. BMC Med Res Methodol. 2011. PMID: 21718530 Free PMC article.
RESULTS: For trials with a fixed number of equal sized clusters (k), the trial will be feasible provided the number of clusters is greater than the product of the number of individuals required under individual randomisation (nI) and the estimated intra-cluster correlation …
RESULTS: For trials with a fixed number of equal sized clusters (k), the trial will be feasible provided the number of clusters is gr …
Vigabatrin for refractory partial epilepsy.
Hemming K, Maguire MJ, Hutton JL, Marson AG. Hemming K, et al. Cochrane Database Syst Rev. 2013 Jan 31;(1):CD007302. doi: 10.1002/14651858.CD007302.pub2. Cochrane Database Syst Rev. 2013. PMID: 23440814 Review.
Percutaneous vesicoamniotic shunting versus conservative management for fetal lower urinary tract obstruction (PLUTO): a randomised trial.
Morris RK, Malin GL, Quinlan-Jones E, Middleton LJ, Hemming K, Burke D, Daniels JP, Khan KS, Deeks J, Kilby MD; Percutaneous vesicoamniotic shunting in Lower Urinary Tract Obstruction (PLUTO) Collaborative Group. Morris RK, et al. Among authors: Hemming K. Lancet. 2013 Nov 2;382(9903):1496-506. doi: 10.1016/S0140-6736(13)60992-7. Epub 2013 Aug 14. Lancet. 2013. PMID: 23953766 Free PMC article. Clinical Trial.
The Percutaneous shunting in Lower Urinary Tract Obstruction (PLUTO) study and randomised controlled trial: evaluation of the effectiveness, cost-effectiveness and acceptability of percutaneous vesicoamniotic shunting for lower urinary tract obstruction.
Morris RK, Malin GL, Quinlan-Jones E, Middleton LJ, Diwakar L, Hemming K, Burke D, Daniels J, Denny E, Barton P, Roberts TE, Khan KS, Deeks JJ, Kilby MD. Morris RK, et al. Among authors: Hemming K. Health Technol Assess. 2013 Dec;17(59):1-232. doi: 10.3310/hta17590. Health Technol Assess. 2013. PMID: 24331029 Free PMC article. Clinical Trial.
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