@misc{indiciae32149ee36c29,
  title = {Custom-molded earplug performance: a retrospective study.},
  author = {C R Smith and J N Wilmoth and T E Borton},
  year = {1980},
  doi = {10.3109/01050398009076344},
  url = {https://pubmed.ncbi.nlm.nih.gov/7444324/},
  note = {Source identifier: 7444324}
}