“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”. The Southeast Asian Journal of Tropical Medicine and Public Health 55, no. 4 (August 16, 2024): 137–158. Accessed October 6, 2025. https://journal.seameotropmednetwork.org/index.php/jtropmed/article/view/1033.