@misc{indiciae9569445201d0,
  title = {Multiple-lead electrocardiograms.},
  author = {I G W HILL},
  year = {1950},
  doi = {10.1016/s0140-6736(50)90866-x},
  url = {https://pubmed.ncbi.nlm.nih.gov/15422810/},
  note = {Source identifier: 15422810}
}