Ahmed, A., F. Sana, M. Yasir, H. Jamal, S. Yousaf, and A. Khan. “Epidemiology of SARS-CoV-2 With Implications of Reinfection Update After 01 Year of Ongoing Pandemic: Cross Sectional Study From Tertiary Care Hospital From Southern Region of Pakistan”. Pakistan Armed Forces Medical Journal (PAFMJ), Vol. 72, no. 1, Feb. 2022, pp. 91-96, doi:10.51253/pafmj.v72i1.7060.