1. From the Division of Cardiology (P.D., S.S.O.), St Michael’s Hospital and the University of Toronto, Toronto, Ontario; the Division of Cardiology (P.G.G., D.R.), Montreal Heart Institute and the Université de Montréal, Montreal, Quebec; the Division of Cardiology (C.R.K.), St Paul’s Hospital and the University of British Columbia, Vancouver, British Columbia; the Division of Cardiology (E.C.), Sunnybrook and Women’s College Health Sciences Centre and the University of Toronto, Toronto, Ontario;...