Skakun, O. Z., and N. M. Seredyuk. “Ferritin Level Predicts in-Hospital Mortality in Hypertensive Patients With COVID-19”. Zaporozhye Medical Journal 25, no. 1 (March 6, 2023): 11–15. Accessed July 23, 2024. http://zmj.zsmu.edu.ua/article/view/266424.