@misc{indiciae21b4d6bbef96,
  title = {Stable chronic obstructive pulmonary disease.},
  author = {H A Kerstjens},
  year = {1999},
  doi = {10.1136/bmj.319.7208.495},
  url = {https://pubmed.ncbi.nlm.nih.gov/10454405/},
  note = {Source identifier: 10454405}
}