Aydın, Aytekin, Mustafa Öztürk, and Murat Gökhan Kinaş. “The Determination of Fetal Gender With Gestational Sac Volume Maternal Age and Body Mass Index”. Gynecology Obstetrics & Reproductive Medicine 20, no. 2 (August 29, 2014): 85–87. Accessed May 3, 2024. https://gorm.com.tr/index.php/GORM/article/view/141.