[1] Univ Sharjah, Coll Med, Sharjah Inst Med Res, Sharjah, U Arab Emirates
[2] King Saud Univ Med City, King Fahad Cardiac Ctr, Dept Cardiol, Riyadh, Saudi Arabia
[3] McGill Univ, Res Inst McGill Univ Hlth Ctr, Meakins Christie Labs, Montreal, PQ, Canada
[4] Univ Sharjah, Coll Med, Dept Clin Sci, Sharjah, U Arab Emirates