Waleed Alhumaid1,2, Haran Yogasundaram1,2, Janek Manoj Senaratne1,2. 1. Division of Cardiology, Department of Medicine, 2C2 Walter Mackenzie Centre, University of Alberta, 8440-112 Street, Edmonton, AB T6G 2B7, Canada. 2. Mazankowski Alberta Heart Institute, 11220 83 Ave NW, Edmonton, AB T6G 2B7, Canada.