@misc{indiciaec8f0d1aa76e5,
  title = {Letter: The Vitatron pacemaker MIP 400R.},
  author = {H Ector},
  year = {1976},
  doi = {10.1378/chest.69.1.136b},
  url = {https://pubmed.ncbi.nlm.nih.gov/1244277/},
  note = {Source identifier: 1244277}
}