@misc{indiciae61af03730c79,
  title = {100 patients treated with implanted cardiac pacemaker.},
  author = {P Tala and P Pantzar and P Halttunen and P Siltanen and K J Heikkilä},
  year = {1967},
  url = {https://pubmed.ncbi.nlm.nih.gov/5591924/},
  note = {Source identifier: 5591924}
}