1. Department of Obstetrics and Gynaecology, Women’s Reproductive Health Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
2. Student Research Committee, Tabriz University of Medical Sciences, Tabriz, Iran
3. Department of Obstetrics and Gynaecology, Tabriz University of Medical Sciences, Tabriz, Iran
4. Research Center for Evidence Based Medicine, Faculty of Medicine, Tabriz University of Medical Sciences, Tabriz, Iran
5. Tabriz Health Services Management Research Center, Health Management and Safety Promotion Research Institute, Tabriz University of Medical Sciences, Tabriz, Iran