Darbar, Soumendra, and Srimoyee Saha. “Immune Boosting Role of Vitamins in Prevention of COVID-19 Infection”. Journal of Basic Pharmacology and Toxicology 4, no. 2 (December 13, 2020): 1-5. Accessed July 17, 2026. https://scigreen.com/index.php/JBPT/article/view/74.