1. Community Medicine, Health Policy Research Center, Institute of Health, Shiraz University of Medical Sciences, Shiraz, Iran
2. Student Research Committee, School of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran
3. Department of Child and Infant Health, Shiraz University of Medical Science, Shiraz, Iran
4. Persian Cohort Research Center, Mashhad University of Medical Sciences, Mashhad, Iran
5. Internal Medicine, Health Policy Research Center, Institute of Health, Shiraz University of Medical Sciences, Shiraz, Iran