@misc{indiciae16b6f5da6936,
  title = {The heart's pacemaker.},
  author = {E F Adolph},
  year = {1967},
  doi = {10.1038/scientificamerican0367-32},
  url = {https://pubmed.ncbi.nlm.nih.gov/6068686/},
  note = {Source identifier: 6068686}
}