[1] Jahra Hosp, Jahra, Kuwait
[2] Natl Guard Hosp, Riyadh, Saudi Arabia
[3] King Abdulaziz Univ, Fac Med, POB 80200, Jeddah 21589, Saudi Arabia
[4] Gulf Dialysis Tech Serv, Dubai, U Arab Emirates
[5] King Khalid Univ Hosp, Riyadh, Saudi Arabia
[6] King Fahad Med City, Riyadh, Saudi Arabia
[7] Cleveland Clin, Abu Dhabi, U Arab Emirates
[8] Saud AlBabtain Cardiac Ctr, Dammam, Saudi Arabia
[9] Shiekh Khalifa Med City, Abu Dhabi, U Arab Emirates
[10] Fakeeh Univ Hosp, Dubai, U Arab Emirates
[11] Univ Maryland, Sch Med, Baltimore, MD 21201 USA
[12] Univ Lorraine, Nancy, France