1. Department of Midwifery, School of Medicine North Khorasan University of Medical Sciences Bojnurd Iran
2. Department of Midwifery and Reproductive Health, School of Nursing and Midwifery, Midwifery and Reproductive Health Research Center Shahid Beheshti University of Medical Sciences Tehran Iran
3. Social Determinants of Health Research Center Alborz University of Medical Sciences Karaj Iran