TY  - RPRT
TI  - Symposium on immunization. Immunization against poliomyelitis.
AU  - P F Wehrle
PY  - 1967
DO  - 10.1080/00039896.1967.10664952
UR  - https://pubmed.ncbi.nlm.nih.gov/6054574/
ID  - 6054574
ER  -