@misc{indiciae53b1696dfa06,
  title = {[Protocol for the registration of the sinus node electrogram].},
  author = {L Padeletti and R Fenici and G Masini and A Michelucci and A Raviele and S Romano},
  year = {1983},
  url = {https://pubmed.ncbi.nlm.nih.gov/6671500/},
  note = {Source identifier: 6671500}
}