TY  - RPRT
TI  - Smallpox vaccination: risks are involved.
AU  - C S Goodwin
PY  - 1981
DO  - 10.5694/j.1326-5377.1981.tb135387.x
UR  - https://pubmed.ncbi.nlm.nih.gov/7219289/
ID  - 7219289
ER  -