1.
Yilmaz G, Bulut H, Ozden Omaygenc D, et al. Baseline serum vitamin A and vitamin C levels and their association with disease severity in COVID-19 patients: Serum Vitamin A and C levels and COVID-19 severity. Acta Biomed. 2023;94(1):e2023007. doi:10.23750/abm.v94i1.13655