TY  - RPRT
TI  - Smallpox vaccination-development and discard.
AU  - A D Macrae
PY  - 1972
DO  - 10.1111/j.1469-8749.1972.tb02582.x
UR  - https://pubmed.ncbi.nlm.nih.gov/5029909/
ID  - 5029909
ER  -