Tahir, Muhammad Saad Bin, Muhammad Waseem, Muhammad Salman Ullah, Nageen Hussain, Faiza Kazmi, Munaza Rasheed, and Aman Qammar. 2023. “Epidemiological and Clinical Manifestations of COVID-19 Variants in the Punjab Tertiary Care Hospitals”. BioScientific Review 5 (1), 29-43. https://doi.org/10.32350/BSR.51.03.