@misc{indiciaeda1e9c7a714a, title = {Tolerance induction by an apparently non-immunogenic molecule.}, author = {G E Roelants and J W Goodman}, year = {1970}, doi = {10.1038/227175a0}, url = {https://pubmed.ncbi.nlm.nih.gov/4987872/}, note = {Source identifier: 4987872} }