Kumar, Ananya, Amisha Agrawal, and Sabina Langer. “Comprehensive Assessment of Elderly Population in North India During Era of SARS-CoV-2 Pandemic”. International Journal Of Community Medicine And Public Health 8, no. 3 (February 24, 2021): 1370–1375. Accessed November 16, 2025. https://www.ijcmph.com/index.php/ijcmph/article/view/7635.