M. Raza, M. A. Raza, D. E. A. Cheema, M. A. Cheema, A. Rafique, and S. W. Khan, “DISAPPEARANCE OF ANTIBODIES IN COVID-19 MYTHS ORREALITY”, Pak Armed Forces Med J, vol. 71, no. Suppl-3, pp. S530–33, Dec. 2021, doi: 10.51253/pafmj.v1i1.7940.