TY  - RPRT
TI  - Pneumococcal type 4 typing sera cross-react with type 2 pneumococcus.
AU  - D Hansman
PY  - 1979
DO  - 10.1136/jcp.32.7.740
UR  - https://pubmed.ncbi.nlm.nih.gov/41004/
ID  - 41004
ER  -