@misc{indiciaeb1610ab03546,
  title = {Qualitative testing of the eustachian tube function.},
  author = {S INGELSTEDT and U ORTEGREN},
  year = {1963},
  doi = {10.3109/00016486309139988},
  url = {https://pubmed.ncbi.nlm.nih.gov/13956500/},
  note = {Source identifier: 13956500}
}