“COMPARISON OF DIFFERENCES  IN CLINICAL MANIFESTATIONS, LABORATORY  FINDINGS AND OUTCOMES BETWEEN  PEDIATRIC COVID-19 PATIENTS HOSPITALIZED  DURING THE DELTA AND OMICRON PERIODS  AT NARESUAN UNIVERSITY HOSPITAL, THAILAND”. 2024. The Southeast Asian Journal of Tropical Medicine and Public Health, vol. 55, no. 4, Aug. 2024, pp. 137-58, https://journal.seameotropmednetwork.org/index.php/jtropmed/article/view/1033.