Effectiveness of Vitamin C Administration on Outcome in COVID-19 Patients: A Systematic Review and Meta-Analysis. Jurnal Respirologi Indonesia, [S. l.], v. 43, n. 2, p. 121–130, 2023. DOI: 10.36497/jri.v43i2.341. Disponível em: http://www.jurnalrespirologi.org/index.php/jri/article/view/341. Acesso em: 20 aug. 2025.