Ridha, N., Fikri, B., Rahimi, R., Laompo, A., Tanjung, C., Daud, D. and Massi, N. 2021. Do the acute lymphoblastic leukemia and non-hodgkin lymphoma patients have a worse prognosis of COVID-19 infection in children?: a case report. Health Science Journal of Indonesia. 12, 1 (Jun. 2021), 20-25. DOI:https://doi.org/10.22435/hsji.v12i1.4467.