@misc{indiciaec048d23e87fe,
  title = {A bilateral stethoscope.},
  author = {J A Walker and A K Mathur},
  year = {1983},
  doi = {10.1111/j.1365-2044.1983.tb13943.x},
  url = {https://pubmed.ncbi.nlm.nih.gov/6829889/},
  note = {Source identifier: 6829889}
}