@misc{indiciae112e9aa55bb8,
  title = {Comparison of indirect and direct sinuatrial conduction time by synchronous sinus node electrogram.},
  author = {D L Zhang and S L Chen},
  year = {1988},
  doi = {10.1016/0167-5273(88)90292-6},
  url = {https://pubmed.ncbi.nlm.nih.gov/3170039/},
  note = {Source identifier: 3170039}
}