title: Invited commentary.
authors.affiliation: University of Ottawa Heart Institute, H3401, 40 Ruskin St, Ottawa, Ontario K1Y 4W7, Canada. mboodhwani@ottawaheart.ca
authors.forename: Munir
authors.initials: M
authors.lastname: Boodhwani
mesh_terms: D003097:Collateral Circulation / Q000502:physiology*; D047549:Coronary Artery Bypass, Off-Pump / Q000379:methods* / Q000401:mortality; D003326:Coronary Circulation / Q000502:physiology*; D006801:Humans