title: Cochrane Collaboration and the evolution of evidence.
authors.affiliation: The Lancet, London NW1 7BY, UK.
authors.forename: William
authors.initials: W
authors.lastname: Summerskill
mesh_terms: D003226:Congresses as Topic; D016206:Databases, Bibliographic / Q000639:trends*; D019317:Evidence-Based Medicine; D006801:Humans