BEIDAS, S. Why we should universally cover our mouth and nose in public while battling COVID-19?. Archives of Community Medicine and Public Health, [S. l.], v. 6, n. 1, p. 058–059, 2020. DOI: 10.17352/2455-5479.000077. Disponível em: https://www.healthdisgroup.com/acmph/article/view/ACMPH-6-177. Acesso em: 7 sep. 2025.