[1] Al Amiri Hosp, Sabah Al Ahmad Cardiac Ctr, Kuwait, Kuwait
[2] Kuwait Tech Coll K Tech, Kuwait, Kuwait
[3] Adan Hosp, Kuwait, Kuwait
[4] Royal Hosp, Muscat, Oman
[5] Sheikh Khalifa Med City, Inst Cardiac Sci, Abu Dhabi, U Arab Emirates
[6] King Fahad Cardiac Ctr, Riyadh, Saudi Arabia
[7] Qatar Cardiovasc Res Ctr, Doha, Qatar
[8] Clevland Clin, Abu Dhabi, U Arab Emirates
[9] King Salman Heart Ctr, Riyadh, Saudi Arabia
[10] Sanaa Univ, Fac Med, Sanaa, Yemen
[11] Dubai Hosp, Dubai, U Arab Emirates
[12] Mohammed Bin Khalifa Cardiac Ctr, Awali, Bahrain