WU, F.; KELSEY, A. Early Detection of Influenza Activity Using Syndromic Surveillance in Missouri. Online Journal of Public Health Informatics, [S. l.], v. 5, n. 1, 2013. DOI: 10.5210/ojphi.v5i1.4461. Disponível em: https://ojphi.org/ojs/index.php/ojphi/article/view/4461. Acesso em: 27 jan. 2022.