@misc{indiciae975f02017b4c,
  title = {[The first-derivative sinus node electrogram (FDSNE)].},
  author = {H Y Wu and F S Gu},
  year = {1987},
  url = {https://pubmed.ncbi.nlm.nih.gov/3436243/},
  note = {Source identifier: 3436243}
}