Aldemir, Oya, Ertuğrul Karahanoğlu, Deniz Esinler, Neslihan Yerebasmaz, and Erdem Fadıllıoğlu. 2014. “Umbilical Artery Doppler Findings in Patients With Preterm Premature Rupture of Membranes”. Gynecology Obstetrics &Amp; Reproductive Medicine 20 (3). Ankara, TR:143-45. https://www.gorm.com.tr/index.php/GORM/article/view/160.