Irfan, M. ., W. . Akram, and V. J. . Hooper. “Factors Affecting the Recovery of COVID-19 Patients in Pakistan, With a Focus on Smoking: A Comprehensive Analysis”. International Journal of Innovative Research and Scientific Studies, vol. 7, no. 4, Sept. 2024, pp. 1730-7, doi:10.53894/ijirss.v7i4.3483.