title: Meta-analysis covers the horizon when the literature search is undertaken through a keyhole.
authors.forename: Thanos
authors.initials: T
authors.lastname: Athanasiou
authors.forename: Christopher
authors.initials: C
authors.lastname: Rao
authors.forename: Brian F
authors.initials: BF
authors.lastname: Buxton
mesh_terms: D001026:Coronary Artery Bypass / Q000379:methods; D006801:Humans; D015201:Meta-Analysis as Topic; D017534:Radial Artery / Q000637:transplantation; D012196:Review Literature as Topic; D012501:Saphenous Vein / Q000637:transplantation; D014654:Vascular Patency