1 Department of Midwifery, School of Medicine, North Khorasan University of Medical Sciences, Bojnurd, Iran.
2 Student Research Committee, Department of Midwifery and Reproductive Health, School of Nursing and Midwifery, Shahid Beheshti University of Medical Sciences, Tehran, Iran.
3 Sexual and Reproductive Health Research Center, Mazandaran University of Medical Sciences, Sari, Iran. zahra_kiani69@yahoo.com.
4 Student Research Committee, Kerman University of Medical Sciences, Kerman, Iran.