Chellappan, Indumathi, Venkateshwaran Palanisamy, and Bharathi Elangovan. “Clinical and Laboratory Profile of COVID-19 in Children below 15 Years”. International Journal of Contemporary Pediatrics 8, no. 9 (August 23, 2021): 1489–1495. Accessed October 23, 2025. https://www.ijpediatrics.com/index.php/ijcp/article/view/4319.