Out of sight but not out of mind: how to search for unpublished clinical trial evidence

24 01 2012

A key challenge in conducting systematic reviews is to identify the existence and results of unpublished trials, and unreported methods and outcomes within published trials.  An-Wen Chan provides guidance for reviewers on adopting a comprehensive strategy to search beyond the published literature.

Descargar en BMJ 2011;344:d8013


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