Naik, Harish, and Ashwini Kolur. “Upper Respiratory Tract Infection: Drug Utilization Study”. International Journal of Basic & Clinical Pharmacology 5, no. 5 (January 10, 2017): 1822–1825. Accessed March 22, 2023. https://www.ijbcp.com/index.php/ijbcp/article/view/592.