title: Invited commentary.
authors.affiliation: Division of Cardiac Surgery, St. Michael's Hospital, University of Toronto, Toronto, Ontario, Canada. gilbert.tang@utoronto.ca
authors.forename: Gilbert H L
authors.initials: GH
authors.lastname: Tang
authors.forename: Stephen
authors.initials: S
authors.lastname: Fremes
mesh_terms: D000368:Aged; D001026:Coronary Artery Bypass / Q000401:mortality* / Q000706:statistics & numerical data; D018572:Disease-Free Survival; D005260:Female; D006801:Humans; D007431:Intraoperative Complications / Q000401:mortality*; D008297:Male; D008875:Middle Aged; D012189:Retrospective Studies; D017741:Survivors; D013997:Time Factors; D018487:Ventricular Dysfunction, Left / Q000601:surgery; D016277:Ventricular Function, Left / Q000502:physiology