1. Department of Midwifery, Faculty of Nursing and Midwifery, Mashhad Medical Sciences, Islamic Azad University, Mashhad, Iran
2. Department of Biostatistics, Social Determinants of Health Research Center, Mashhad University of Medical Sciences, Mashhad, Iran
3. Student Research Committee, Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran
4. Department of Midwifery, Faculty of Medicine, Social Determinants of Health Research Center, Gonabad University of Medical Science, Gonabad, Iran
5. Department of Midwifery, Student Research Committee, School of Medicine, Gonabad University of Medical Sciences, Gonabad, Iran