Afrin, Syeda Fahmida, Md Hasanur Rahman, Abu Kholdun Al Mahmood, Salma Nasir, and SiddiKa 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 20, no. 5 (September 5, 2021): 166–170. Accessed November 28, 2021. https://www.banglajol.info/index.php/BJMS/article/view/55409.