@misc{indiciae9b36b3054e58,
  title = {Letter: Pacemaker rate increase.},
  author = {R L Richardson and D Siroospour and J W Pate},
  year = {1976},
  doi = {10.1378/chest.70.3.409},
  url = {https://pubmed.ncbi.nlm.nih.gov/954478/},
  note = {Source identifier: 954478}
}