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, 55(4), 137-158. https://journal.seameotropmednetwork.org/index.php/jtropmed/article/view/1033 (Original work published 2024)