TOGNOTTI, Eugenia. Influenza pandemics: a historical retrospect. The Journal of Infection in Developing Countries, [S. l.], v. 3, n. 05, p. 331–334, 2009. DOI: 10.3855/jidc.239. Disponível em: https://jidc.org/index.php/journal/article/view/19759501. Acesso em: 3 may. 2024.