@misc{indiciae0bd910a8cd73,
  title = {Persistent ventricular ectopic beats: a long-term study.},
  author = {K B Elkon and T A Swerdlow and D P Myburgh},
  year = {1977},
  url = {https://pubmed.ncbi.nlm.nih.gov/910197/},
  note = {Source identifier: 910197}
}