@misc{indiciae3c6712e65e80,
  title = {Letter: Coronary sinus pacemaker problems.},
  author = {L S Dreifus},
  year = {1974},
  doi = {10.1016/0002-8703(74)90258-0},
  url = {https://pubmed.ncbi.nlm.nih.gov/4419878/},
  note = {Source identifier: 4419878}
}