title: Author reply: To PMID 23444421.
authors.affiliation: Cardiology Division, Santa Maria della Stella Hospital, Località Ciconia, 05018 Orvieto, Italy.
authors.forename: Andrea
authors.initials: A
authors.lastname: Mazza
authors.forename: Maria Grazia
authors.initials: MG
authors.lastname: Bendini
authors.forename: Massimo
authors.initials: M
authors.lastname: Leggio
authors.forename: Umberto
authors.initials: U
authors.lastname: Riva
authors.forename: Carmine
authors.initials: C
authors.lastname: Ciardiello
authors.forename: Sergio
authors.initials: S
authors.lastname: Valsecchi
authors.forename: Raffaele
authors.initials: R
authors.lastname: De Cristofaro
authors.forename: Giampiero
authors.initials: G
authors.lastname: Giordano
mesh_terms: D002304:Cardiac Pacing, Artificial / Q000401:mortality*; D005260:Female; D006333:Heart Failure / Q000401:mortality* / Q000517:prevention & control*; D017052:Hospital Mortality; D006801:Humans; D008297:Male; D010138:Pacemaker, Artificial / Q000706:statistics & numerical data*