Lavanya S, Seethalakshmi V. A two-year study of patterns and prevalence of congenital malformations. Int J Reprod Contracept Obstet Gynecol [Internet]. 2017 Dec. 25 [cited 2025 Nov. 11];7(1):114-8. Available from: https://www.ijrcog.org/index.php/ijrcog/article/view/4068