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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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| Autors principals: | , , , |
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| Format: | Artigo |
| Idioma: | Inglês |
| Publicat: |
BioMed Central
2005
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| Matèries: | |
| Accés en línia: | 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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