JUNAIDI. Smallpox vaccination in Nias Island, Indonesia, 1854-1915. Medicina Historica, [S. l.], v. 7, n. 1, p. e2023005, 2023. Disponível em: https://mattioli1885journals.com/index.php/MedHistor/article/view/14138.. Acesso em: 18 jul. 2024.