Roy, K., H. Shahed, K. Roy, Q. S. Sarah, and N. S. Chowdhury. “An Assessment of the Pattern of Congenital Heart Disease in Children: Study in a Tertiary Care Hospital, Rajshahi, Bangladesh”. International Journal of Contemporary Pediatrics, vol. 8, no. 1, Dec. 2020, pp. 1-6, doi:10.18203/2349-3291.ijcp20205500.