1. Department of Midwifery and Reproductive Health School of Nursing and Midwifery University of Medical Sciences Tehran Tehran Iran
2. Department of Midwifery School of Nursing and Midwifery Qom University of Medical Sciences Qom Iran
3. Narges Social Security Organization Dorood Lorestan Iran
4. Department of Obstetrics & Gynecology Faculty of Medicine Qom University of Medical Sciences Qom Iran