@misc{indiciaea9f2fbc62b48,
  title = {Ventricular-- triggered pacemaker arrhythmias.},
  author = {A Castellanos and O Maytin and L Lemberg and B V Berkovits},
  year = {1969},
  doi = {10.1136/hrt.31.5.546},
  url = {https://pubmed.ncbi.nlm.nih.gov/4187134/},
  note = {Source identifier: 4187134}
}