@misc{indiciaebf8f323a8689,
  title = {Classification of heart block using His bundle electrogram.},
  author = {E Fletcher and P Morton and J G Murtagh and S Bekheit},
  year = {1972},
  url = {https://pubmed.ncbi.nlm.nih.gov/5075317/},
  note = {Source identifier: 5075317}
}