Effectiveness of unani regimen in protecting high risk population from COVID -19: A pilot study. Indian Journal of Natural Products and Resources (IJNPR) [Formerly Natural Product Radiance (NPR)], [S. l.], v. 13, n. 2, p. 248–254, 2023. DOI: 10.56042/ijnpr.v13i2.58610. Disponível em: https://or.niscpr.res.in/index.php/IJNPR/article/view/3798. Acesso em: 14 may. 2026.