@misc{indiciae9f3f5de009a9,
  title = {A revised code for pacemaker identification. Pacemaker Study Group.},
  author = {V Parsonnet and S Furman and N P Smyth},
  year = {1981},
  url = {https://pubmed.ncbi.nlm.nih.gov/7237727/},
  note = {Source identifier: 7237727}
}