TY  - GEN
AU  - GUIMARAES DE CARVALHO,J
AU  - FERREIRA DE CARVALHO,J
TI  - [Vaccination results against smallpox]
SN  - 0021-7573
PY  - 2007///1227
KW  - Humans
KW  - Smallpox
KW  - Vaccination
KW  - Variola virus
N1  - Publication Type: Journal Article
ER  -