1. Tehran University of Medical Sciences, Prehospital and Hospital Emergency Research Center, Tehran, Iran Tehran University of Medical Sciences, Department of Anesthesiology, Imam Khomeini Hospital Complex, Tehran, Iran
2. UC Irvine School of Medicine, Department of Emergency Medicine, Orange, CA, United States of America
3. Tehran University of Medical Sciences, Prehospital and Hospital Emergency Research Center, Tehran, Iran Tehran University of Medical Sciences, Shariati Hospital, Department of Emergency Medicine, Tehran, Iran
4. Tehran Emergency Medical Service Center, Tehran, Iran
5. Iranian Emergency Medical Service Organization, Tehran, Iran Khatamol Anbia Hospital, Shefa Neuroscience Research Center, Tehran, Iran