@misc{indiciaec950c43f4e34,
  title = {Endocardial electrograms from pacemaker catheters.},
  author = {A J Gordon and M C Vagueiro and S S Barold},
  year = {1968},
  doi = {10.1161/01.cir.38.1.82},
  url = {https://pubmed.ncbi.nlm.nih.gov/11712296/},
  note = {Source identifier: 11712296}
}