@misc{indiciae20e0d5e7a92b,
  title = {Physiological cardiac pacing: the DDD pacemaker system and rate-responsive modes.},
  author = {M J Stafford and K M Kleinschmidt},
  url = {https://pubmed.ncbi.nlm.nih.gov/2021971/},
  note = {Source identifier: 2021971}
}