@misc{indiciae31d8c38c82f0,
  title = {Streptococcus pneumoniae in chronic bronchitis.},
  author = {J P Kilbourn},
  year = {1973},
  doi = {10.1016/s0140-6736(73)91662-0},
  url = {https://pubmed.ncbi.nlm.nih.gov/4121577/},
  note = {Source identifier: 4121577}
}