Tumkur, Diwakar Narashima Murthy, Thejaswi Kuchalu Gurumurthy, and Rajeshwari Channagoudar. “Clinical Profile and Outcome of Elderly COVID-19 Patients”. International Journal of Advances in Medicine 8, no. 8 (July 23, 2021): 1073–1078. Accessed December 25, 2025. https://www.ijmedicine.com/index.php/ijam/article/view/3023.