title: The need to know crude event rates in meta-analysis.
authors.affiliation: HTA Unit, ESTAV Toscana Centro, Regional Health Service, Firenze 50100, Italy. Electronic address: andrea.messori.it@gmail.com.
authors.forename: Andrea
authors.initials: A
authors.lastname: Messori
authors.forename: Valeria
authors.initials: V
authors.lastname: Fadda
authors.forename: Dario
authors.initials: D
authors.lastname: Maratea
authors.forename: Sabrina
authors.initials: S
authors.lastname: Trippoli
mesh_terms: D047549:Coronary Artery Bypass, Off-Pump; D006801:Humans; D062645:Percutaneous Coronary Intervention; D018570:Risk Assessment; D020521:Stroke / Q000453:epidemiology* / Q000209:etiology*