title: 20 years of the Cochrane Collaboration.
authors.forename: Derek
authors.initials: D
authors.lastname: Richards
mesh_terms: D000846:Anniversaries and Special Events; D003299:Cooperative Behavior; D055317:Evidence-Based Practice / Q000266:history*; D049673:History, 20th Century; D049674:History, 21st Century; D006801:Humans; D012196:Review Literature as Topic