title: Invited commentary.
authors.affiliation: Division of Cardiovascular Surgery, Toronto General Hospital, 200 Elizabeth St, 4N-464, Toronto, Ontario, Canada M5G 2C4. vivek.rao@uhn.on.ca
authors.forename: Vivek
authors.initials: V
authors.lastname: Rao
mesh_terms: D001026:Coronary Artery Bypass; D005544:Forecasting; D006801:Humans; D007423:Intra-Aortic Balloon Pumping / Q000706:statistics & numerical data*; D018570:Risk Assessment