@misc{indiciaeff86b13b4f2e,
  title = {Domiciliary ventilation in chronic obstructive lung disease.},
  author = {P M Calverley},
  year = {1992},
  doi = {10.1136/thx.47.5.334},
  url = {https://pubmed.ncbi.nlm.nih.gov/1609374/},
  note = {Source identifier: 1609374}
}