@misc{indiciaef3cbac7f3adf,
  title = {COPD guidelines.},
  author = {R Jones},
  year = {1998},
  doi = {10.1136/thx.53.7.624a},
  url = {https://pubmed.ncbi.nlm.nih.gov/9797768/},
  note = {Source identifier: 9797768}
}