@misc{indiciae28845659dd52,
  title = {Letter: ECG and the A-V bundle.},
  author = {E R Trethewie},
  year = {1974},
  doi = {10.1016/s0140-6736(74)92950-x},
  url = {https://pubmed.ncbi.nlm.nih.gov/4132464/},
  note = {Source identifier: 4132464}
}