@misc{indiciae50d5baf19191,
  title = {Increase in cardiac output with rate-responsive pacemaker.},
  author = {F Beyersdorf and J Kreuzer and T A Happ and M Zegelman and P Satter},
  year = {1986},
  doi = {10.1016/s0003-4975(10)60519-x},
  url = {https://pubmed.ncbi.nlm.nih.gov/3741016/},
  note = {Source identifier: 3741016}
}