This study examines the use of clinical trial registries in systematic reviews published in the top otolaryngology journals and evaluates whether additional studies could have been located for systematic reviews that omitted clinical trial registry searches.
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http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6487905 | PMC |
http://dx.doi.org/10.1001/jamaoto.2019.0521 | DOI Listing |
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