@misc{indiciaed0b90d9177f1,
  title = {Preventing ambient light from affecting pulse oximetry.},
  author = {M N Siegel and N Gravenstein},
  year = {1987},
  doi = {10.1097/00000542-198708000-00030},
  url = {https://pubmed.ncbi.nlm.nih.gov/3605758/},
  note = {Source identifier: 3605758}
}