title: Response to letter by Messeri et al.
authors.affiliation: Dipartimento Cardiovascolare, Policlinico S. Orsola, Bologna, Italy. Electronic address: tulliopalmerini@hotmail.com.
authors.forename: Tullio
authors.initials: T
authors.lastname: Palmerini
authors.forename: Giuseppe
authors.initials: G
authors.lastname: Biondi-Zoccai
authors.forename: Diego
authors.initials: D
authors.lastname: Della Riva
authors.forename: Andrea
authors.initials: A
authors.lastname: Mariani
authors.forename: Gregg W
authors.initials: GW
authors.lastname: Stone
mesh_terms: D047549:Coronary Artery Bypass, Off-Pump; D006801:Humans; D062645:Percutaneous Coronary Intervention; D018570:Risk Assessment; D020521:Stroke / Q000453:epidemiology* / Q000209:etiology*