1. Pediatrics Center of Excellence, Children’s Medical Center, Tehran University of Medical Sciences, Tehran, Iran
2. Student Research Committee, Faculty of Medicine, Shahid-Beheshti University of Medical Sciences, Tehran, Iran
3. Department of Epidemiology, School of Public Health, Iran University of Medical Sciences, Tehran, Iran
4. Mental Health Research Center, School of Behavioral Sciences and Mental Health, Iran University of Medical Sciences, Tehran, Iran
5. Department of Infectious Diseases, Pediatrics Center of Excellence, Children’s Medical Center, Tehran University of Medical Sciences, Tehran, Iran
6. Family, Population and School Health Office, Health Deputy, Ministry of Health and Medical Education, Tehran, Iran.