Katlan, Doruk Cevdi, Atakan Tanacan, Gokcen Orgul, Kemal Leblebicioglu, and Mehmet Sinan Beksac. “An Intelligent Prenatal Screening System for the Prediction of Trisomy-21 Using Triple Test Variables: The Hacettepe System”. Gynecology Obstetrics & Reproductive Medicine 25, no. 2 (August 30, 2019): 67–69. Accessed April 20, 2024. https://gorm.com.tr/index.php/GORM/article/view/798.