TY  - RPRT
TI  - [Conditioned immunologic defense using various bacterial polysaccharides. I. Protection tests].
AU  - M T Pérez-Ureña
AU  - R López
AU  - M T Iriarte
PY  - 1969
UR  - https://pubmed.ncbi.nlm.nih.gov/4985392/
ID  - 4985392
ER  -