Dhar A, Kaul I. Value of PI of uterine artery at 23-24 weeks in the prediction of adverse pregnancy outcome. Int J Reprod Contracept Obstet Gynecol [Internet]. 2017 Nov. 23 [cited 2025 Nov. 25];6(12):5435-9. Available from: https://www.ijrcog.org/index.php/ijrcog/article/view/3788