@misc{indiciae071ad43520e3,
  title = {A conservation device for oxygen therapy in COPD.},
  author = {T W Evans and J C Waterhouse and A J Suggett and P Howard},
  year = {1988},
  url = {https://pubmed.ncbi.nlm.nih.gov/3147198/},
  note = {Source identifier: 3147198}
}