Syeda Naveera Raza, Santosh Kumar, Ambrina Khatoon, Nida Hussain, Urfa Kayani. “Outcome and Severity of COVID-19 in Vaccinated and Unvaccinated Patients”. Pakistan Journal of Medical & Health Sciences 17, no. 06 (June 16, 2023): 89. Accessed November 24, 2024. https://pjmhsonline.com/index.php/pjmhs/article/view/4932.