title: What are the differences between a literature search, a literature review, a systematic review and a meta-analysis? And why is a systematic review considered to be so good?
authors.affiliation: Graduate Entry Medical School, University of Limerick. clodagh.ogorman@ul.ie
authors.forename: C S
authors.initials: CS
authors.lastname: O'Gorman
authors.forename: A P
authors.initials: AP
authors.lastname: Macken
authors.forename: W
authors.initials: W
authors.lastname: Cullen
authors.forename: J
authors.initials: J
authors.lastname: Saunders
authors.forename: C
authors.initials: C
authors.lastname: Dunne
authors.forename: M F
authors.initials: MF
authors.lastname: Higgins
mesh_terms: D006801:Humans; D019317:Evidence-Based Medicine; D063369:Knowledge Discovery; D015201:Meta-Analysis as Topic; D012196:Review Literature as Topic; D000078202:Systematic Reviews as Topic