1. Division of Cardiology (A.W.S., K.A., K.A.C., P.D.), St Michael’s Hospital, Toronto, Canada.
2. Department of Medicine (A.W.S., K.A., K.A.C., P.D., D.S.L., D.A.S., H.R.), University of Toronto, Canada.
3. Ontario Forensic Pathology Service, Department of Laboratory Medicine and Pathobiology (K.C.), University of Toronto, Canada.
4. Division of Cardiology, University Health Network, Peter Munk Cardiac Centre, Toronto General Hospital, Canada (D.S.L., D.A.S., H.R).
5. Institute for Clinical Evaluative Sciences, Toronto, Canada (D.S.L.).
6. Keenan Research Centre of the Li Ka Shing Knowledge Institute (P.D.), St Michael’s Hospital, Toronto, Canada.