title: Cochrane systematic reviews: time for an introduction and appraisal.
authors.forename: Walter
authors.initials: W
authors.lastname: Ling
authors.forename: Michael
authors.initials: M
authors.lastname: Farrell
authors.forename: Robert
authors.initials: R
authors.lastname: Ali
mesh_terms: D003299:Cooperative Behavior; D003625:Data Collection; D006801:Humans; D007391:International Cooperation; D015201:Meta-Analysis as Topic; D016032:Randomized Controlled Trials as Topic; D012196:Review Literature as Topic; D019966:Substance-Related Disorders