1. Student Research Committee, School of Nursing and Midwifery, Shahroud University of Medical Sciences, Shahroud, Iran
2. Department of Reproductive Health, School of Nursing and Midwifery, Tehran University of Medical Sciences, Tehran, Iran
3. Nursing and Midwifery Care Research Center, School of Nursing and Midwifery, Tehran University of Medical Sciences, Tehran, Iran
4. Department of Reproductive Health, School of Nursing and Midwifery, Shahroud University of Medical Sciences, Shahroud, Iran
5. Department of Epidemiology, School of Public Health, Shahroud University of Medical Sciences, Shahroud, Iran
6. Department of Clinical Sciences, School of Medicine, Shahroud University of Medical Sciences, Shahroud, Iran