TY  - RPRT
TI  - Immunization against poliomyelitis.
AU  - A J Beale
PY  - 1969
DO  - 10.1093/oxfordjournals.bmb.a070684
UR  - https://pubmed.ncbi.nlm.nih.gov/4319086/
ID  - 4319086
ER  -