1. Student Research Committee, Birjand University of Medical Sciences, Birjand, Iran
2. Social Determinants of Health Research Center, Department of Health Education and Health Promotion, School of Health, Birjand University of Medical Sciences, Birjand, Iran
3. Department of Epidemiology and Biostatistics, School of Health, Birjand University of Medical Sciences, Birjand, Iran
4. Department of Midwifery, Qaen Faculty of Medical Sciences, Birjand University of Medical Sciences, Birjand, Iran