What is it about?

Letter to the Editor

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Why is it important?

Grey literature in systematic review and meta-analysis.


Including unpublished trials (grey literature) in systematic review and meta-analysis are useful to assess the presence and magnitude of publication bias.

Mr Sharanbasappa Durg
Independent Institute

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This page is a summary of: Comment on Abdel Shaheed et al.: “Efficacy and tolerability of muscle relaxants for low back pain: Systematic review and meta-analysis”, European Journal of Pain, January 2017, Wiley,
DOI: 10.1002/ejp.987.
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