@misc{indiciae6810878e4ce3,
  title = {Chronic bronchitis in England.},
  author = {J SIMPSON},
  year = {1962},
  doi = {10.1016/0021-9681(62)90119-4},
  url = {https://pubmed.ncbi.nlm.nih.gov/13993057/},
  note = {Source identifier: 13993057}
}