@misc{indiciae17c7f0fb6fbe,
  title = {A simple indexing system for electrocardiograms.},
  author = {E LEPESCHKIN},
  year = {1958},
  doi = {10.1016/0002-8703(58)90220-5},
  url = {https://pubmed.ncbi.nlm.nih.gov/13582849/},
  note = {Source identifier: 13582849}
}