TY  - RPRT
TI  - [Smallpox, eradication and infectious diseases].
AU  - O P Forattini
PY  - 1988
DO  - 10.1590/s0034-89101988000500001
UR  - https://pubmed.ncbi.nlm.nih.gov/2854910/
ID  - 2854910
ER  -