BINH, N. V.; LAN, P. T.; TINH, P. T.; NGUYEN, T. M. N. Description of the First Pandemic Influenza A (H1N1) Cases in Vietnam, June-July 2009. Outbreak, Surveillance, Investigation & Response (OSIR) Journal, [S. l.], v. 3, n. 1, p. 10–13, 2023. DOI: 10.59096/osir.v3i1.263363. Disponível em: https://he02.tci-thaijo.org/index.php/OSIR/article/view/263363. Acesso em: 5 oct. 2026.