title: The Cochrane Collaboration: 20 years strong.
authors.affiliation: University of Colorado Health.
authors.forename: Kathi
authors.initials: K
authors.lastname: Patterson
mesh_terms: D003299:Cooperative Behavior; D055318:Evidence-Based Nursing / Q000458:organization & administration*; D006801:Humans; D010506:Periodicals as Topic; D019145:Rehabilitation Nursing / Q000458:organization & administration*; D012196:Review Literature as Topic