1. Pregnancy Health Research Center, Zahedan University of Medical Sciences, Zahedan, Iran
2. School of Medicine, Tehran University of Medical Sciences, Tehran, Iran
3. Molood Infertility Center, Ali-ibn Abi Talib Hospital, Zahedan, Iran
4. Department of Obstetrics and Gynecology, Zahedan University of Medical Sciences, Zahedan, Iran
5. Department of Social Medicine, Zahedan University of Medical Sciences, Zahedan, Iran