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Do protocols for new randomised trials take previous similar trials into account? Cohort study of contemporary trial protocols
OBJECTIVE: To investigate to what extent evidence from previous similar trials or systematic reviews was considered before conducting new trials. DESIGN: Cohort study of contemporary protocols for trials with ethical approval. METHODS: All protocols for randomised trials approved by the five ethical...
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| Vydáno v: | BMJ Open |
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| Hlavní autoři: | , , , , , |
| Médium: | Artigo |
| Jazyk: | Inglês |
| Vydáno: |
BMJ Publishing Group
2019
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| Témata: | |
| On-line přístup: | https://ncbi.nlm.nih.gov/pmc/articles/PMC6858261/ https://ncbi.nlm.nih.gov/pubmed/31712328 https://ncbi.nlm.nih.govhttp://dx.doi.org/10.1136/bmjopen-2018-026661 |
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