PANDEY, M. R.; ACHARYA, I. L.; MOYEED, A. Clinical survey of Smallpox. Journal of Nepal Medical Association, [S. l.], v. 2, n. 1, p. 8–12, 2003. DOI: 10.31729/jnma.878. Disponível em: http://www.jnma.com.np/jnma/index.php/jnma/article/view/878. Acesso em: 19 may. 2024.