Clinical Outcome of Vitamin D Supplementation in Moderate and Severe COVID-19 Patients: A Randomized Clinical Trial . Academia Journal of Medicine, [S. l.], v. 7, n. 2, p. 24–26, 2024. DOI: 10.48165/fvcefk77. Disponível em: https://journals.acspublisher.com/index.php/ajm/article/view/18891. Acesso em: 9 may. 2025.