1. Department of Emergency Medicine, Imam Khomeini General Hospital, Ahvaz Jundishapur University of Medical Sciences, Ahvaz 6193673166, Iran
2. Department of Emergency Medicine, Hazrate Rasoul Akram Hospital, Iran University of Medical Sciences, Tehran 14455364, Iran
3. Department of Pediatrics, Abouzar Children’s Hospital, Ahvaz Jundishapur University of Medical Sciences, Ahvaz 6135715794, Iran