@misc{indiciaefa8d88f16e8a,
  title = {Indications for long-term oxygen therapy.},
  author = {A G Stewart and P Howard},
  year = {1992},
  doi = {10.1159/000196113},
  url = {https://pubmed.ncbi.nlm.nih.gov/1513974/},
  note = {Source identifier: 1513974}
}