1. Research Center for Health Sciences, Education Development Center, Hamadan University of Medical Sciences, Hamadan, Iran.
2. Department of Midwifery, Mother and Child Care Research Center, School of Nursing and Midwifery, Hamadan University of Medical Sciences, Hamadan, Iran.
3. Department of Ear, Nose and Throat, School of Medicine, Hearing Disorder Research Center, Hamadan University of Medical Sciences, Hamadan, Iran.
4. Department of Gynecology, School of Medicine, Hamadan University of Medical Sciences, Hamadan, Iran.
5. Department of Medical-Surgical Nursing, School of Nursing and Midwifery, Hamadan University of Medical Sciences, Hamadan, Iran.