@misc{indiciaec8994324c998,
  title = {Altitude and O2 therapy.},
  author = {A L Barach},
  year = {1971},
  doi = {10.7326/0003-4819-74-3-449\_1},
  url = {https://pubmed.ncbi.nlm.nih.gov/5552121/},
  note = {Source identifier: 5552121}
}