Ali Haider, Juwayria Omar, Hameed Mumtaz Durrani, Muhammad Afzal, Abid Ali, and Akash John. “Comparison of Pre and Post Vaccinated Covid-19 Antibody Titers in General Population”. BMC Journal of Medical Sciences 4, no. 1 (March 13, 2023): 36–42. Accessed November 18, 2024. https://bmcjms.org/index.php/bmcj/article/view/99.