@misc{indiciae74ac6a4e7ae8,
  title = {Optical fibre plethysmograph.},
  author = {Y Shah and R A Valsler and A W Palmer},
  year = {1985},
  doi = {10.1016/0141-5425(85)90064-0},
  url = {https://pubmed.ncbi.nlm.nih.gov/4057994/},
  note = {Source identifier: 4057994}
}