TY  - RPRT
TI  - Further thoughts on swine flu immunization.
AU  - C M Buttery
AU  - D J Merchant
PY  - 1979
DO  - 10.2105/ajph.69.8.820
UR  - https://pubmed.ncbi.nlm.nih.gov/453419/
ID  - 453419
ER  -