Association Between Vitamin A and D Status and the Risk of COVID-19 in the Elderly Population: A Single-Center Experience

Li T , Cui X , Li X, Yang J, Wang H, Yang J, Jin Z, Published 24 June 2025 Volume 2025:18 Pages 8233—8241,DOI https://doi.org/10.2147/JIR.S522566 Background:  Studies have confirmed that vitamins A and D are related to the coronavirus disease…[...]