@misc{indiciae890a49cd8055,
  title = {Phonocardiography.},
  author = {A LEATHAM},
  year = {1952},
  doi = {10.1093/oxfordjournals.bmb.a074199},
  url = {https://pubmed.ncbi.nlm.nih.gov/12987693/},
  note = {Source identifier: 12987693}
}