@misc{indiciaed365544180d4,
  title = {Mastoid obliteration.},
  author = {F Guilford},
  year = {1970},
  doi = {10.1001/archotol.1970.04310040101025},
  url = {https://pubmed.ncbi.nlm.nih.gov/4917081/},
  note = {Source identifier: 4917081}
}