1. Nursing and Midwifery Care Research Center Mashhad University of Medical Sciences Mashhad Iran
2. Department of Midwifery, School of Nursing and Midwifery Mashhad University of Medical Sciences Mashhad Iran
3. Department of Statistics and Epidemiology Social Determinants of Health Research Center, School of Health, Mashhad University of Medical Sciences Mashhad Iran
4. School of Nursing Hubei University of Medicine Shiyan China
5. Alice Lee Centre for Nursing Studies National University of Singapore Singapore