Serum sFlt-1/PlGF Ratio as an Early Predictor of Preeclampsia in High-Risk Pregnancies between 20–28 Weeks of Gestation: A Prospective Observational Study. Glob. J. Med. Pharm. Sci. 2023;1(1):27-34. Accessed June 25, 2026. http://www.globapc.com/index.php/gjmps/article/view/22