@misc{indiciaeec254a2ae4c4,
  title = {An accurate, clinically practical system for spatial vectorcardiography.},
  author = {E FRANK},
  year = {1956},
  doi = {10.1161/01.cir.13.5.737},
  url = {https://pubmed.ncbi.nlm.nih.gov/13356432/},
  note = {Source identifier: 13356432}
}