1 Department of Medicine, Division of Cardiology, Queen's University, Kingston, Ontario, Canada.
2 Division of Cardiology, Department of Medicine, Vancouver General Hospital, University of British Columbia, Vancouver, British Columbia, Canada.
3 Division of Cardiology, the University of Toronto, University Health Network, Toronto, Ontario, Canada.
4 Department of Internal Medicine, Section of Cardiology, Max Rady College of Medicine, Rady Faculty of Health Sciences, University of Manitoba, Winnipeg, Manitoba, Canada.
5 Montreal Heart Institute, University of Montreal, Montreal, Québec, Canada.
6 Division of Cardiology, Dalhousie University, Halifax, Nova Scotia, Canada.
7 Division of Cardiology, Department of Medicine, Western University, London Health Sciences Centre, London, Ontario, Canada.
8 University of Toronto, Toronto, Ontario, Canada.
9 Schulich School of Business-York University, Toronto, Ontario, Canada.
10 Echocardiography laboratory, Vancouver General Hospital, University of British Columbia, Vancouver, British Columbia, Canada.
11 Division of Cardiology, Jewish General Hospital, McGill University, Montreal, Québec, Canada.
12 Division of Cardiology, Department of Medicine, Vancouver General Hospital, University of British Columbia, Vancouver, British Columbia, Canada. Electronic address: Parvathy.Nair@vch.ca.