S. Halder, G. Tajkia, K. Roy, M. E. . Rahman, and S. K. . Amin, “Characterization of COVID-19 infection in children: A 6 months experience in a tertiary care hospital in Dhaka, Bangladesh”, Anwer Khan Mod Med Coll J, vol. 12, no. 1, pp. 45–51, Mar. 2023.