@misc{indiciae7c751f6be668,
  title = {Monitoring the heart-beat.},
  author = {P B Taylor},
  doi = {10.1111/j.1365-2044.1979.tb06262.x},
  url = {https://pubmed.ncbi.nlm.nih.gov/539645/},
  note = {Source identifier: 539645}
}