1. Sunnybrook Research Institute Toronto Ontario Canada
2. ICESToronto Ontario Canada
3. Institute of Health Policy Management and Evaluation, University of TorontoToronto Ontario Canada
4. Toronto Rehabilitation InstituteUniversity Health Network Toronto Ontario Canada
5. Department of Anesthesiology and Critical Care, Perelman School of MedicineUniversity of Pennsylvania Perelman School of Medicine Philadelphia Pennsylvania
6. Leonard Davis Institute of Health EconomicsUniversity of Pennsylvania Philadelphia Pennsylvania
7. Center for Perioperative Outcomes Research and TransformationUniversity of Pennsylvania Perelman School of Medicine Philadelphia Pennsylvania
8. Center for Pharmacoepidemiology Research and TrainingUniversity of Pennsylvania Perelman School of Medicine Philadelphia Pennsylvania
9. Department of Anesthesia, Perioperative, and Pain MedicineBrigham and Women's Hospital and Harvard Medical School Boston Massachusetts
10. Division of Pharmacoepidemiology and Pharmacoeconomics, Department of MedicineBrigham and Women's Hospital and Harvard Medical School Boston Massachusetts
11. Department of Critical Care MedicineSunnybrook Health Sciences Centre Toronto Ontario Canada
12. Department of AnesthesiaSt. Michael's Hospital Toronto Ontario Canada
13. Department of AnesthesiaUniversity of Toronto Toronto Ontario Canada
14. Li Ka Shing Knowledge InstituteSt. Michael's Hospital Toronto Ontario Canada