@misc{indiciae2538567d163f,
  title = {Direct spatial vectorcardiography; clinical application.},
  author = {B J ALLENSTEIN},
  year = {1956},
  doi = {10.1378/chest.30.4.359},
  url = {https://pubmed.ncbi.nlm.nih.gov/13365484/},
  note = {Source identifier: 13365484}
}