@misc{indiciae7cada51dc474,
  title = {Long-term oxygen therapy.},
  author = {T L Petty},
  year = {2005},
  doi = {10.1183/09031936.05.00068605},
  url = {https://pubmed.ncbi.nlm.nih.gov/16204610/},
  note = {Source identifier: 16204610}
}