Naznin, Colonel Lubna, Susane Giti, Arif Ahmed Khan, Yasmin Akter, Mimi Parvin, and Sarmin Sultana. “Evaluation of Serum Ferritin in Hospitalized Patients With COVID-19 As A Potential Biomarker for Assessing COVID-19 Severity”. Journal of Bangladesh College of Physicians and Surgeons 39, no. 4 (September 30, 2021): 220–224. Accessed April 29, 2024. https://www.banglajol.info/index.php/JBCPS/article/view/55942.