@misc{indiciae12f91876e292,
  title = {Complete heart block: procrastination suggested in using pacemaker.},
  author = {J Margolis},
  year = {1970},
  doi = {10.1001/jama.1970.03170220078022},
  url = {https://pubmed.ncbi.nlm.nih.gov/5467555/},
  note = {Source identifier: 5467555}
}