@misc{indiciaebbead8a1a0ae,
  title = {[Phonocardiographic characteristics].},
  author = {A M Kirsanov and V A Golikov and A B Dovgan'},
  year = {1978},
  url = {https://pubmed.ncbi.nlm.nih.gov/755983/},
  note = {Source identifier: 755983}
}