K. . Shahzadi, H. . . Shahid, M. . Malik, H. . Raza Khan, M. . Talha, and P. Nazir, “Prevalence of Chronic Fatigue in Post COVID-19 Patients in Twin Cities: Chronic Fatigue in Post COVID-19”, PJHS, vol. 4, no. 06, pp. 77–81, Jun. 2023.