@misc{indiciae249a773b9a85,
  title = {An improved cardiac defibrillator.},
  author = {R M SHEPARD},
  year = {1953},
  doi = {10.1378/chest.24.6.642},
  url = {https://pubmed.ncbi.nlm.nih.gov/13107561/},
  note = {Source identifier: 13107561}
}