A. Qayyum, R. Adil, S. Balooch, S. Khan, Z. Amin, and R. Mahmood, “Comparison of HRCT Chest Findings of COVID-19 Patients Having Clinical Co-morbid to Those Without Co-morbid Disease”, Pak Armed Forces Med J, vol. 73, no. 3, pp. 727–30, Jun. 2023, doi: 10.51253/pafmj.v73i3.7824.