@misc{indiciae7d9dacf0fd6a,
  title = {Elastic foamed polymer earplug as a stethoscope earpiece.},
  author = {M Yamashita},
  year = {1987},
  doi = {10.1097/00000542-198703000-00051},
  url = {https://pubmed.ncbi.nlm.nih.gov/3826721/},
  note = {Source identifier: 3826721}
}