@misc{indiciae1b5949d24657,
  title = {Tympanic membrane perforation. Effect on audiogram.},
  author = {W P Anthony and C W Harrison},
  year = {1972},
  doi = {10.1001/archotol.1972.00770080796003},
  url = {https://pubmed.ncbi.nlm.nih.gov/4666421/},
  note = {Source identifier: 4666421}
}