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A priori postulated and real power in cluster randomized trials: mind the gap.
Guittet L, Giraudeau B, Ravaud P
BMC Med Res Methodol 2005, 5:25
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Research article
Planning a cluster randomized trial with unequal cluster sizes: practical issues involving continuous outcomes
Guittet L, Ravaud P, Giraudeau B
BMC Medical Research Methodology 2006, 6:17 (12 April 2006)
[Full text] [PubMed Central] [PubMed] [Related articles] [Cited on BioMed Central]
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