Silalahi, R., W. Dalimunthe, R. Evalina, J. Harahap, B. Lubis, and I. Lubis. “Characteristics of Pneumonia in Children With Suspected/Confirmed COVID-19”. Paediatrica Indonesiana, Vol. 63, no. 2, Apr. 2023, pp. 57-64, doi:10.14238/pi63.2.2023.57-64.