[1] ShahidBeheshti University of Medical Sciences,Midwifery and Reproductive Health Research Center
[2] Shahid Beheshti University of Medical Sciences,Department of Midwifery, School of Nursing and Midwifery
[3] Shahid Beheshti University of Medical Sciences,Student Research Committee, School of Nursing and Midwifery
[4] North Khorasan University of Medical Sciences,Department of Midwifery, School of Medicine
[5] Shahid Beheshti University of Medical Sciences,Department of Basic Sciences, School of Nursing and Midwifery