@misc{indiciaee828d855369f,
  title = {"Endocardial thump".},
  author = {H A Kwast},
  year = {1971},
  doi = {10.1056/nejm197104082841424},
  url = {https://pubmed.ncbi.nlm.nih.gov/5548048/},
  note = {Source identifier: 5548048}
}