@misc{indiciaee52f019b6497,
  title = {Letter: Mechanical ventilation techniques.},
  author = {E W Johnson},
  year = {1975},
  doi = {10.1001/jama.234.10.1018b},
  url = {https://pubmed.ncbi.nlm.nih.gov/1242402/},
  note = {Source identifier: 1242402}
}