Karamustafaoğlu Balcı, B., Kalelioğlu, İbrahim H., Kılıç, Y., Has, R. and Ömer, B. (2016) “How to calculate median Pregnancy-Associated Plasma Protein-A values to predict preeclampsia? Do We Need a Newer Formula?”, Gynecology Obstetrics & Reproductive Medicine. Ankara, TR, 22(3), pp. 135–138. doi: 10.21613/GORM.2016.621.