WIWANITKIT, Viroj. Letter to the Editor: Human infections with avian influenza A(H7N9) virus: preliminary assessments of the age and sex distribution. Western Pacific Surveillance and Response, Manila, Philippines, v. 4, n. 4, 2013. DOI: 10.5365/wpsar.2013.4.3.006. Disponível em: https://ojs.wpro.who.int/ojs/index.php/wpsar/article/view/216. Acesso em: 4 jun. 2026.