1. Emergency Medical Services Program, College of Applied Medical Sciences, King Saud Bin Abdulaziz University for Health Sciences, Al Ahsa, Saudi Arabia
2. King Abdullah International Medical Research Center, Al Ahsa, Saudi Arabia
3. Ministry of National Guard - Health Affairs, Al Ahsa, Saudi Arabia
4. College of Medicine, King Faisal University, Alahsa, Saudi Arabia
5. Respiratory Therpy Program, College of Applied Medical Sciences, King Saud Bin Abdulaziz University for Health Sciences, Al Ahsa, Saudi Arabia