Shahid, R., M. Umar, R. Zafar, S. Zeb, S. Ambreen, and M. Akram. “Comorbidity of COVID-19 Related Fatalities in Tertiary Care Hospitals of Rawalpindi, Pakistan”. Journal of Rawalpindi Medical College, Vol. 24, no. Supp-1, July 2020, pp. 32-36, doi:10.37939/jrmc.v24iSupp-1.1422.