@misc{indiciae62abc371e685,
  title = {Selective phonocardiography.},
  author = {A A LUISADA and L RICHMOND and C ARAVANIS},
  year = {1956},
  doi = {10.1016/0002-8703(56)90083-7},
  url = {https://pubmed.ncbi.nlm.nih.gov/13282840/},
  note = {Source identifier: 13282840}
}