@misc{indiciaef69cab6bcdf6,
  title = {Supraventricular arrhythmias with abnormal QRS complex.},
  author = {D P Zipes and C Fisch},
  year = {1972},
  url = {https://pubmed.ncbi.nlm.nih.gov/4117270/},
  note = {Source identifier: 4117270}
}