Singh, Amit Kumar, Brijmohan Rajak, Ruby Singh, and Jitendra Mandal. “Congenital Complete Heart Block in Fetal Echocardiography”. Nepalese Heart Journal 18, no. 2 (November 23, 2021): 61–63. Accessed May 5, 2024. https://nepjol.info/index.php/NHJ/article/view/40407.