Ozgen, Gulten, and Gultekin Adanas Aydin. “The Predictive Value of Maternal Serum Screening Tests for Adverse Pregnancy Outcomes”. Annals of Medical Research 27, no. 4 (May 25, 2021): 1268–1274. Accessed July 22, 2024. http://annalsmedres.org/index.php/aomr/article/view/696.