@misc{indiciae919d4d585822,
  title = {Chronic obstructive pulmonary disease.},
  author = {David Price and Martin Duerden},
  year = {2003},
  doi = {10.1136/bmj.326.7398.1046},
  url = {https://pubmed.ncbi.nlm.nih.gov/12750181/},
  note = {Source identifier: 12750181}
}