@misc{indiciae7c8a19b9bbd4,
  title = {["Innocent" heart murmurs].},
  author = {A A Krylov and E F Onishchenko},
  year = {1993},
  url = {https://pubmed.ncbi.nlm.nih.gov/8301981/},
  note = {Source identifier: 8301981}
}