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Using the Cochrane Central Register of Controlled Trials to identify clinical trial registration is insufficient: a cross-sectional study
BACKGROUND: While conducting systemic reviews, searching for ongoing or unpublished trials is critical to address publication bias. As of April 2019, records of ongoing or unpublished randomized and/or quasi-randomized controlled trials registered in the International Clinical Trials Registry Platfo...
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| Vydáno v: | BMC Med Res Methodol |
|---|---|
| Hlavní autoři: | , , |
| Médium: | Artigo |
| Jazyk: | Inglês |
| Vydáno: |
BioMed Central
2020
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| Témata: | |
| On-line přístup: | https://ncbi.nlm.nih.gov/pmc/articles/PMC7382846/ https://ncbi.nlm.nih.gov/pubmed/32711471 https://ncbi.nlm.nih.govhttp://dx.doi.org/10.1186/s12874-020-01083-y |
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