P. Madhu, D. Santhosh and Kiran Madhala (2021) “Comparison Study of Lung Involvement in Vaccinated and Un Vaccinated Covid Patients”, International Journal of Health and Clinical Research, 4(10), pp. 229–233. Available at: https://www.ijhcr.com/index.php/ijhcr/article/view/1648 (Accessed: 24February2026).