Impact of allocation concealment on conclusions drawn from meta-analyses of randomized trials.
BACKGROUND: Randomized trials without reported adequate allocation concealment have been shown to overestimate the benefit of experimental interventions. We investigated the robustness of conclusions drawn from meta-analyses to exclusion of such trials. MATERIAL: Random sample of 38 reviews from The...
| Główni autorzy: | , , , , , |
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| Format: | Journal article |
| Język: | English |
| Wydane: |
2007
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