TY  - RPRT
TI  - Lessons from Finland's successful immunization program.
AU  - M B Heisler
AU  - J B Richmond
PY  - 1994
DO  - 10.1056/nejm199411243312109
UR  - https://pubmed.ncbi.nlm.nih.gov/7969284/
ID  - 7969284
ER  -