@misc{indiciaec21b86f4d258,
  title = {Penicillin-resistant pneumococci.},
  author = {K D Allen},
  year = {1991},
  doi = {10.1016/0195-6701(91)90072-g},
  url = {https://pubmed.ncbi.nlm.nih.gov/1672321/},
  note = {Source identifier: 1672321}
}