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How many Cochrane reviews are needed to cover existing evidence on the effects of healthcare interventions?

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Footnotes

  • Conflict of interest statements for authors: Susan Mallett was employed during this project as a Research Assistant at the UK Cochrane Centre. Mike Clarke is employed as Director of the UK Cochrane Centre.

  • Disclaimer: The views expressed in this paper represent those of the authors and are not necessarily the views or the official policy of the Cochrane Collaboration.