1. Department of Obstetrics and Gynecology, Institute of Health Sciences, Wollega University, Nekemte, Ethiopia
2. Department of Public Health, Institute of Health Sciences, Wollega University, Nekemte, Ethiopia
3. Nursing and Midwifery Service Unit, Wollega University Referral Hospital, Wollega University, Nekemte, Ethiopia
4. Anesthesia Service Unit, Wollega University Referral Hospital, Wollega University, Nekemte, Ethiopia