@misc{indiciae1eff4b26943c,
  title = {Pulse oximetry.},
  author = {K K Tremper and S J Barker},
  year = {1989},
  doi = {10.1097/00000542-198901000-00019},
  url = {https://pubmed.ncbi.nlm.nih.gov/2643368/},
  note = {Source identifier: 2643368}
}