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Are more observational studies being included in Cochrane Reviews?
BACKGROUND: Increasing the scope of an evidence based approach to areas outside healthcare has renewed the importance of a long-standing discussion on randomised versus observational study designs in evaluating the effectiveness of interventions. We investigate statistically if an increasing recogni...
| Autores principales: | , |
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| Formato: | Online Artículo Texto |
| Lenguaje: | English |
| Publicado: |
BioMed Central
2012
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| Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3503546/ https://www.ncbi.nlm.nih.gov/pubmed/23069208 http://dx.doi.org/10.1186/1756-0500-5-570 |