@misc{indiciaeb6d8177f593c,
  title = {P wave alternans.},
  author = {A Donato and G Oreto and L Schamroth},
  year = {1988},
  doi = {10.1016/0002-8703(88)90354-7},
  url = {https://pubmed.ncbi.nlm.nih.gov/3414504/},
  note = {Source identifier: 3414504}
}