@misc{indiciae7058148f6973,
  title = {Isotopic cardiac pacemaker: clinical use.},
  author = {A A Gage and W M Chardack and A J Federico},
  year = {1974},
  doi = {10.1001/archsurg.1974.01360050065015},
  url = {https://pubmed.ncbi.nlm.nih.gov/4429449/},
  note = {Source identifier: 4429449}
}