1. Population Health Research Institute, Hamilton, Ontario, Canada (J.S.H., W.F.M., D.P.L., S.F.L., G.W., A.D., S.J.C.)
2. Centre for Cardiovascular Innovation, University of British Columbia, Vancouver, British Columbia, Canada (A.D.K., J.B.)
3. McMaster University, Hamilton, Ontario, Canada (G.A.)
4. Institut Universitaire de Cardiologie et de Pneumologie de Québec, Laval University, Quebec City, Quebec, Canada (F.P.)
5. Southlake Regional Hospital, Newmarket, Ontario, Canada (B.T.)
6. McGill University, Montreal, Quebec, Canada (J.J.)
7. University of Calgary, Calgary, Alberta, Canada (D.V.E.)
8. University of Ottawa, Ottawa, Ontario, Canada (D.H.B., M.S.)
9. University of Victoria, Victoria, British Columbia, Canada (M.S.)
10. University of Toronto, Toronto, Ontario, Canada (V.K., E.C.)
11. Dalhousie University and QEII Health Sciences Centre, Halifax, Nova Scotia, Canada (J.L.S.)
12. University of Sherbrooke, Sherbrooke, Quebec, Canada (J.R.)
13. University Health Network, University of Toronto, Toronto, Ontario, Canada (D.S.)
14. Population Health Research Institute, Hamilton, and School of Nursing, McMaster University, Hamilton, Ontario, Canada (S.C.)
15. University of Alberta, Edmonton, Alberta, Canada (T.H.)
16. Montreal Heart Institute, Montreal, Quebec, Canada (B.M.).