LY, Sovann et al. Establishing seasonal and alert influenza thresholds in Cambodia using the WHO method: implications for effective utilization of influenza surveillance in the tropics and subtropics. Western Pacific Surveillance and Response, Manila, Philippines, v. 8, n. 1, 2017. DOI: 10.5365/wpsar.2017.8.1.002. Disponível em: https://ojs.wpro.who.int/ojs/index.php/wpsar/article/view/518. Acesso em: 4 jun. 2026.