C. Sharmila, K. Saraswathi, Yuvarani R. “Efficiency of First Trimester Uterine Artery Doppler and Serum Papp-A in the Prediction of Pre Eclampsia in 300antenatal Patients”. Annals of the Romanian Society for Cell Biology, Mar. 2021, pp. 3460-7, https://annalsofrscb.ro/index.php/journal/article/view/1844.