@misc{indiciaeedfb162e4e9a,
  title = {Electrical alternans.},
  author = {D H Spodick and B W Usher},
  year = {1972},
  doi = {10.1016/0002-8703(72)90486-3},
  url = {https://pubmed.ncbi.nlm.nih.gov/5075100/},
  note = {Source identifier: 5075100}
}