Prasad, N. Nagendra, Sherin Annamma Thampan, and R. Nagarathnamma. 2017. “Emergency Cervical Cerclage and Pregnancy Outcomes”. International Journal of Reproduction, Contraception, Obstetrics and Gynecology 6 (5):1993-98. https://doi.org/10.18203/2320-1770.ijrcog20171964.