@misc{indiciae50a056162bd1,
  title = {[Split heart sounds].},
  author = {V Kh Vasilenko and S B Fel'dman and V S Golochevskaia},
  year = {1977},
  url = {https://pubmed.ncbi.nlm.nih.gov/839684/},
  note = {Source identifier: 839684}
}