R. S, R. A. Study of spectrum of cardiac disease complicating pregnancy and the maternal and foetal outcome. Int J Reprod Contracept Obstet Gynecol [Internet]. 2019 Nov. 26 [cited 2025 Oct. 13];8(12):4803-7. Available from: https://www.ijrcog.org/index.php/ijrcog/article/view/7442