@misc{indiciae800628c07fdc,
  title = {Tracheal sound detector.},
  author = {J P Heemels and H H Ros and P Sipkema and F de Vries},
  year = {1986},
  doi = {10.1007/bf02443933},
  url = {https://pubmed.ncbi.nlm.nih.gov/3713279/},
  note = {Source identifier: 3713279}
}