Mathews M, Ramesan K, Kumar A, Kurian S, Divakaran B. Descriptive epidemiology of COVID-19 deaths in the first, second, and third pandemic waves: A comparative study from Southern India. Asian J Med Sci [Internet]. 2022 Jul. 1 [cited 2024 Nov. 24];13(7):1-7. Available from: https://nepjol.info./index.php/AJMS/article/view/45249