@misc{indiciae0996c43f3f87,
  title = {Fourth sound gallop or split first sound?},
  author = {D H Spodick},
  year = {1973},
  doi = {10.1016/0002-9149(73)90314-7},
  url = {https://pubmed.ncbi.nlm.nih.gov/4692591/},
  note = {Source identifier: 4692591}
}