Maghfirah, Andi Ita, Tenri Esa, Yuyun Widaningsih, and Uleng Bahrun. 2022. “Correlation of Serum Ferritin Levels and COVID-19 Severity in Makassar”. International Journal of Health Sciences 6 (S2):9971-79. https://doi.org/10.53730/ijhs.v6nS2.7536.