@misc{indiciaeb8b6929a7182,
  title = {Harvey--the pacemaker.},
  author = {H MacLennan},
  year = {1971},
  doi = {10.1177/003693307101600701},
  url = {https://pubmed.ncbi.nlm.nih.gov/4934866/},
  note = {Source identifier: 4934866}
}