[1] Kuwait Univ, Dept Med, Fac Med, Safat 13110, Kuwait
[2] Minist Hlth, Mubarak Al Kabeer Hosp, Dept Med, Jabriya, Kuwait
[3] Sheikh Khalifa Med City, Inst Heart & Vasc, Abu Dhabi, U Arab Emirates
[4] Tufts Med Ctr, Tufts Clin & Translat Sci Inst, Dept Med, Boston, MA USA
[5] Tufts Univ, Sch Med, Boston, MA 02111 USA
[6] Sultan Qaboos Univ, Coll Med & Hlth Sci, Dept Pharmacol & Clin Pharm, Muscat, Oman
[7] Gulf Hlth Res, Muscat, Oman
[8] UAE Univ, Fac Med, Dept Med, Al Ain, U Arab Emirates
[9] Royal Hosp, Dept Med, Muscat, Oman
[10] Al Thawra Hosp, Dept Med, Sanaa, Yemen
[11] Hamad Med Corp, Dept Cardiol & Cardiovasc Surg, Doha, Qatar
[12] Mohammed Bin Khalifa Cardiac Ctr, Dept Cardiol, Manama, Bahrain