1. Department of Anesthesiology and Pain ManagementToronto General HospitalUniversity Health Network Toronto Ontario Canada
2. Division of CardiologyCittà della Salute e Della ScienzaUniversity of Turin Turin Italy
3. Department of AnaesthesiaRoyal Papworth Hospital Cambridge UK
4. Division of CardiologyToronto General HospitalUniversity of Toronto Toronto Ontario Canada
5. Division of Cardiovascular SurgeryToronto General Hospital Toronto Ontario Canada
6. Division of CardiologyUniversity of Chicago Medical Center Chicago Illinois