MEKONNEN, Dessie Ayalew et al. Use of a catch-up programme to improve routine immunization in 13 provinces of Papua New Guinea, 2020–2022. Western Pacific Surveillance and Response, Manila, Philippines, v. 14, n. 4, 2023. DOI: 10.5365/wpsar.2023.14.4.1055. Disponível em: https://ojs.wpro.who.int/ojs/index.php/wpsar/article/view/1055. Acesso em: 3 jun. 2026.