Afrin, S. F. ., M. H. Rahman, A. K. . Al Mahmood, S. Nasir, and S. Khatun. “Assessment of COVID Severity by Measuring D-Dimer and Serum Ferritin Level in Selected Tertiary Care Hospitals of Dhaka City”. Bangladesh Journal of Medical Science, vol. 20, no. 5, Sept. 2021, pp. 166-70, doi:10.3329/bjms.v20i5.55409.