1. Student Research Committee, Tabriz University of Medical Sciences, Tabriz 5165687386, Iran
2. Department of Community Medicine, Mercer University School of Medicine, Macon, GA 31207, USA
3. MPH Program, Department of Public Health and Community Medicine, Tufts University School of Medicine, Boston, MA 02111, USA
4. Social Determinants of Health Research Center, Department of Midwifery, Tabriz University of Medical Sciences, Tabriz 5165687386, Iran