The fourtheenth video in the Cochrane20 series, "Improving the science of systematic reviews", focuses on the work of developing and improving the methods used in preparing Cochrane Reviews. Cochrane contributors talk about the importance of rigorous methods in ensuring the quality of Cochrane evidence, and how The Cochrane Collaboration supports the ongoing work of methodological research.

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To find out more about The Cochrane Collaboration's 20th anniversary, visit anniversary.cochrane.org.