TOYAMA, Yumi; OTA, Masaki; BEYENE, Belay Bezabih. Event-based surveillance in north-western Ethiopia: experience and lessons learnt in the field. Western Pacific Surveillance and Response, Manila, Philippines, v. 6, n. 3, 2015. DOI: 10.5365/wpsar.2015.6.2.002. Disponível em: https://ojs.wpro.who.int/ojs/index.php/wpsar/article/view/330. Acesso em: 3 jun. 2026.