Das S, Ripon RK, Sujan MSH, Tumpa NI, Khan AA, Dhar A, et al. Effectiveness of the ChAdOx1 nCoV-19 vaccination among COVID-19 patients: a retrospective cohort study. Asian J. Med. Biol. Res. [Internet]. 2022 Dec. 28 [cited 2025 Sep. 7];8(4):251-63. Available from: https://www.banglajol.info/index.php/AJMBR/article/view/62138