1. Student Research Committee, School of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran
2. Department of Pediatrics Emergency, Mofid Children’s Hospital, Shahid Beheshti University of Medical Sciences, Tehran, Iran
3. Pediatric Specialist, Emergency Department, Shahid Beheshti University of Medical Sciences, Tehran, Iran
4. Pediatric Infections Research Center, Mofid Children’s Hospital, Shahid Beheshti University of Medical Sciences, Tehran, Iran
5. Pediatric Surgery Research Center, Research Institute for Children’s Health, Shahid Beheshti University of Medical Sciences, Tehran, Iran