COWLING, Benjamin J.; SULLIVAN, Sheena G. The test-negative design for estimating influenza vaccination effectiveness. Online Journal of Public Health Informatics, [S. l.], v. 9, n. 1, 2017. DOI: 10.5210/ojphi.v9i1.7603. Disponível em: https://ojphi.org/ojs/index.php/ojphi/article/view/7603. Acesso em: 17 apr. 2024.