@misc{indiciae223563209aa7,
  title = {Abnormal eustachian valve.},
  author = {G Niwayama and V V Vadakan},
  year = {1971},
  doi = {10.1620/tjem.104.263},
  url = {https://pubmed.ncbi.nlm.nih.gov/5093549/},
  note = {Source identifier: 5093549}
}