@misc{indiciae53d1457a0b18,
  title = {Chronic bronchitis and emphysema.},
  author = {J R Webster and W W Addington},
  year = {1971},
  doi = {10.1080/00325481.1971.11697701},
  url = {https://pubmed.ncbi.nlm.nih.gov/5128034/},
  note = {Source identifier: 5128034}
}