Study filters for non-randomized studies of interventions consistently lacked sensitivity upon external validation
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DOI: 10.1186/s12874-018-0625-4
Abstract: BackgroundLittle evidence is available on searches for non-randomized studies (NRS) in bibliographic databases within the framework of systematic reviews. For instance, it is currently unclear whether, when searching for NRS, effective restriction of the search… read more here.
Keywords: nrs filters; study types; study; randomized studies ... See more keywords