@misc{indiciaefaeafd10cba4,
  title = {Lung sounds.},
  author = {P Forgacs},
  year = {1969},
  doi = {10.1016/s0007-0971(69)80039-2},
  url = {https://pubmed.ncbi.nlm.nih.gov/4887198/},
  note = {Source identifier: 4887198}
}