A. Nazir, N. Nazir, M. M. Qamar, A. Alia, F. M. Sheikh, and A. Mubeen, “Peril Elements of Infection Severity, Disease Non-Improvement, Case Fatality and Management of Sars-Cov-2 in Sargodha Region Pakistan”, apmc, vol. 15, no. 1, pp. 86-90, Mar. 2021.