@misc{indiciae64a68870aa0f,
  title = {Spectral phonocardiography.},
  author = {V A McKUSICK},
  year = {1959},
  doi = {10.1016/0002-9149(59)90248-6},
  url = {https://pubmed.ncbi.nlm.nih.gov/13670121/},
  note = {Source identifier: 13670121}
}