Kumar A, Agrawal A, Langer S. Comprehensive assessment of elderly population in North India during era of SARS-CoV-2 pandemic. Int J Community Med Public Health [Internet]. 2021 Feb. 24 [cited 2025 Nov. 16];8(3):1370-5. Available from: https://www.ijcmph.com/index.php/ijcmph/article/view/7635