Chokkaiyan, Saranya, Sendhil Coumary Arumugam, Saravana Kumar, Lopa B John, and Seetesh Ghose. “Periodontitis As a Risk Factor for Preterm Labour and Low Birth Weight Among Pregnant Women Attending a Tertiary Care Teaching Hospital”. International Journal of Reproduction, Contraception, Obstetrics and Gynecology 4, no. 6 (February 19, 2017): 1804–1810. Accessed October 13, 2025. https://www.ijrcog.org/index.php/ijrcog/article/view/2310.