@misc{indiciae1850271e0a22,
  title = {Pulse oximeters and poor perfusion.},
  author = {C D Hanning and J A Langton},
  year = {1991},
  doi = {10.1111/j.1365-2044.1991.tb09614.x},
  url = {https://pubmed.ncbi.nlm.nih.gov/1952011/},
  note = {Source identifier: 1952011}
}