@misc{indiciaee951fd10253b,
  title = {Supportive therapy in COPD.},
  author = {T L Petty},
  year = {1998},
  doi = {10.1378/chest.113.4\_supplement.256s},
  url = {https://pubmed.ncbi.nlm.nih.gov/9552015/},
  note = {Source identifier: 9552015}
}