[1] King Fahad Hosp Hufof, Emergency Dept, Al Hasa, Saudi Arabia
[2] King Khaled Univ, Fac Med, Abha, Saudi Arabia
[3] Imam Muhammad Ibn Saud Islamic Univ Riyad, Fac Med, Riyadh, Saudi Arabia
[4] Alfaisal Univ, Fac Med, Riyadh, Saudi Arabia
[5] King Abdulaziz Univ, Fac Med, Jeddah, Saudi Arabia
[6] Umm Al Qura Univ, Fac Med, Mecca, Saudi Arabia
[7] King Faisal Univ, Fac Med, Al Hasa, Saudi Arabia
[8] Abqaiq Gen Hosp, Emergency Dept, Abqaiq, Saudi Arabia
[9] Shaqra Univ, Fac Med, Shaqra, Saudi Arabia