@misc{indiciae01a9fe38f354,
  title = {A simple method for analysis of vectorcardiograms.},
  author = {J Wartak},
  year = {1981},
  doi = {10.1016/s0022-0736(81)80054-4},
  url = {https://pubmed.ncbi.nlm.nih.gov/6168719/},
  note = {Source identifier: 6168719}
}