Lavanya, Sowmyanarayanan, and Vuppu Seethalakshmi. 2017. “A Two-Year Study of Patterns and Prevalence of Congenital Malformations”. International Journal of Reproduction, Contraception, Obstetrics and Gynecology 7 (1):114-18. https://doi.org/10.18203/2320-1770.ijrcog20175545.