Ullah, Mohammad Ata, Sumaiya Mamun, Heemel Saha, and A. K. Al-Miraj. “Incidence and Pattern of Congenital Heart Disease in Children: An Observational Cross-Sectional Study”. International Journal of Research in Medical Sciences 13, no. 3 (February 28, 2025): 998–1003. Accessed September 26, 2025. https://www.msjonline.org/index.php/ijrms/article/view/14628.