Nirmalya Manna, Sudipta Das, SK. Sabir Rahaman and Debasis Das (2022) “AEFI Related to Covishield and Covaxin: A Comparative Study in Medical College & Hospital, Kolkata”, International Journal of Health and Clinical Research, 5(3), pp. 317–322. Available at: https://ijhcr.com/index.php/ijhcr/article/view/4392 (Accessed: 26February2026).