@misc{indiciaee85912f77ff2,
  title = {His bundle electrograms.},
  author = {C S Smithen and E Sowton},
  year = {1971},
  doi = {10.1136/hrt.33.5.633},
  url = {https://pubmed.ncbi.nlm.nih.gov/5115007/},
  note = {Source identifier: 5115007}
}