Upper respiratory tract infections: knowledge about the disease, self-care, and use of health services. Portuguese Journal of Family Medicine and General Practice, [S. l.], v. 19, n. 5, p. 415–26, 2003. DOI: 10.32385/rpmgf.v19i5.9969. Disponível em: https://rpmgf.pt/ojs/index.php/rpmgf/article/view/9969. Acesso em: 18 apr. 2026.