@misc{indiciae2a87473901e9,
  title = {Cardiac pacemakers.},
  author = {A A Lefemine},
  doi = {10.1097/00000542-196611000-00020},
  url = {https://pubmed.ncbi.nlm.nih.gov/5332473/},
  note = {Source identifier: 5332473}
}