Yarlagadda, Srilakshmi, Sajana G., and Prasuna J. L. Narra. “Association of Vaginal Infections in Preterm Labour”. International Journal of Reproduction, Contraception, Obstetrics and Gynecology 7, no. 6 (May 26, 2018): 2174–2179. Accessed November 11, 2025. https://www.ijrcog.org/index.php/ijrcog/article/view/4939.