Tosun, M., H. Çelik, Özgür Erdoğan, E. Malatyalıoğlu, M. Çetinkaya, and S. Altunsoy. “Incidence and Sonographic Detection of Fetal Anomalies in Pregnancies Complicated by Polyhydramnios”. Gynecology Obstetrics &Amp; Reproductive Medicine, vol. 14, no. 3, Dec. 2008, pp. 145-9, https://www.gorm.com.tr/index.php/GORM/article/view/460.