Antibiotics are not required to lower respiratory infection. Portuguese Journal of Family Medicine and General Practice, [S. l.], v. 21, n. 6, p. 632–3, 2005. DOI: 10.32385/rpmgf.v21i6.10200. Disponível em: https://rpmgf.pt/ojs/index.php/rpmgf/article/view/10200. Acesso em: 18 apr. 2026.