Thupakula, Thejaswi R., Bela Makhija, and Arpana Haritwal. “A Prospective Randomized Comparative Study of the Efficacy of Sustained Release Vaginal Insert Versus Intracervical Gel in Primigravidae at Term Pregnancy”. International Journal of Reproduction, Contraception, Obstetrics and Gynecology 9, no. 4 (March 25, 2020): 1532–1539. Accessed October 13, 2025. https://www.ijrcog.org/index.php/ijrcog/article/view/7716.