TY  - RPRT
TI  - Invited commentary: stopping polio immunization.
AU  - H F Hull
AU  - R B Aylward
AU  - J Milstien
PY  - 2001
DO  - 10.1093/aje/153.3.215
UR  - https://pubmed.ncbi.nlm.nih.gov/11157406/
ID  - 11157406
ER  -