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Methodological bias in cluster randomised trials

BACKGROUND: Cluster randomised trials can be susceptible to a range of methodological problems. These problems are not commonly recognised by many researchers. In this paper we discuss the issues that can lead to bias in cluster trials. METHODS: We used a sample of cluster randomised trials from a r...

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Autori principali: Hahn, Seokyung, Puffer, Suezann, Torgerson, David J, Watson, Judith
Natura: Artigo
Lingua:Inglês
Pubblicazione: BioMed Central 2005
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Accesso online:https://ncbi.nlm.nih.gov/pmc/articles/PMC554774/
https://ncbi.nlm.nih.gov/pubmed/15743523
https://ncbi.nlm.nih.govhttp://dx.doi.org/10.1186/1471-2288-5-10
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