title: Letter by Bollati et al regarding article, "Off-pump versus on-pump coronary artery bypass graft surgery: differences in short-term outcomes and in long-term mortality and need for subsequent revascularization".
authors.forename: Mario
authors.initials: M
authors.lastname: Bollati
authors.forename: Matteo
authors.initials: M
authors.lastname: Anselmino
authors.forename: Imad
authors.initials: I
authors.lastname: Sheiban
mesh_terms: D001026:Coronary Artery Bypass; D047549:Coronary Artery Bypass, Off-Pump; D003627:Data Interpretation, Statistical; D006801:Humans; D016015:Logistic Models; D015983:Selection Bias; D013223:Statistics as Topic / Q000379:methods*