@misc{indiciaed57a8e323d4a,
  title = {Heart rate alternans.},
  author = {D H Spodick},
  year = {1995},
  doi = {10.7326/0003-4819-123-5-199509010-00024},
  url = {https://pubmed.ncbi.nlm.nih.gov/7625635/},
  note = {Source identifier: 7625635}
}