[1] Univ Montreal, Inst Cardiol Montreal, Montreal, PQ, Canada
[2] BC Cardiac Serv, Vancouver, BC, Canada
[3] Sunnybrook Med Ctr, Inst Clin Evaluat Sci, Toronto, ON, Canada
[4] Univ Calgary, Foothills Hosp, Calgary, AB, Canada
[5] Sunnybrook Med Ctr, Toronto, ON, Canada
[6] Cardiac Care Network Ontario, Toronto, ON, Canada
[7] Inst Natl Excellence Sante & Serv Sociaux, Montreal, PQ, Canada
[8] New Brunswick Heart Ctr, New Brunswick, NJ USA
[9] Univ British Columbia, St Pauls Hosp, Ctr Heart Valve Innovat, Vancouver, BC, Canada