DAYAL, D. Possible role of vitamin D supplementation in coronavirus disease 2019. International Journal of Scientific Reports, [S. l.], v. 6, n. 9, p. 376–378, 2020. DOI: 10.18203/issn.2454-2156.IntJSciRep20203554. Disponível em: https://www.sci-rep.com/index.php/scirep/article/view/714. Acesso em: 4 oct. 2025.