@misc{indiciae29d1c60ad3c3, title = {[Conditioned immunologic defense using various bacterial polysaccharides. I. Protection tests].}, author = {M T Pérez-Ureña and R López and M T Iriarte}, year = {1969}, url = {https://pubmed.ncbi.nlm.nih.gov/4985392/}, note = {Source identifier: 4985392} }