[1] King Abdul Aziz Med City, Intens Care Unit 1425, Dept Intens Care, Riyadh, Saudi Arabia
[2] King Abdul Aziz Med City, Resp Serv, Riyadh, Saudi Arabia
[3] King Saud Bin Abdulaziz Univ Hlth Sci, Riyadh, Saudi Arabia
[4] Natl Guard Hlth Affairs, Qual Management Dept, Riyadh, Saudi Arabia
[5] King Abdul Aziz Med City, Dept Emergency Med, Riyadh, Saudi Arabia
[6] King Abdul Aziz Med City, Natl Guard Hlth Affairs, Med Serv, Riyadh, Saudi Arabia