@misc{indiciae9f4dc498afee,
  title = {Letter: Pacemaker twiddling.},
  author = {J K Condon},
  year = {1974},
  doi = {10.1001/jama.228.12.1521c},
  url = {https://pubmed.ncbi.nlm.nih.gov/4406698/},
  note = {Source identifier: 4406698}
}