TY  - RPRT
TI  - Need for immunization.
AU  - W R DeFOREST
AU  - V K VOLK
PY  - 1951
DO  - 10.1111/j.1746-1561.1951.tb01399.x
UR  - https://pubmed.ncbi.nlm.nih.gov/14814692/
ID  - 14814692
ER  -