@misc{indiciae3f7befcf1487,
  title = {ECG waveform identification by digital computer.},
  author = {P W Macfarlane},
  year = {1971},
  doi = {10.1093/cvr/5.1.141},
  url = {https://pubmed.ncbi.nlm.nih.gov/5544952/},
  note = {Source identifier: 5544952}
}