@misc{indiciaecaf7d8481635,
  title = {Variable venting valve for earmolds.},
  author = {W A Cooper and J R Franks and R N McFall and D P Goldstein},
  doi = {10.3109/00206097509071741},
  url = {https://pubmed.ncbi.nlm.nih.gov/1131129/},
  note = {Source identifier: 1131129}
}