@misc{indiciaef6ef9391beec, title = {Tetracycline-resistant pneumococci.}, author = {R Holt and T N Evans and R L Newman}, year = {1969}, doi = {10.1016/s0140-6736(69)90243-8}, url = {https://pubmed.ncbi.nlm.nih.gov/4184859/}, note = {Source identifier: 4184859} }