1.
Vitamin A and D deficiencies in the prognosis of respiratory tract infections: A systematic review with perspectives for COVID-19 and a critical analysis on supplementation. Rev. Cont. Saúde [Internet]. 2022 Nov. 16 [cited 2026 Sep. 10];22(46):e11026. Available from: https://revistas.unijui.edu.br/contextoesaude/article/view/11026