@misc{indiciaeaf332b2c57d7,
  title = {Hypoxic air machines. Commentary.},
  author = {P Fricker},
  year = {2005},
  doi = {10.1136/jme.2004.005470},
  url = {https://pubmed.ncbi.nlm.nih.gov/15681682/},
  note = {Source identifier: 15681682}
}