@misc{indiciae744fffd7c958,
  title = {Endolymphatic sac surgery.},
  author = {M Portmann},
  year = {1969},
  doi = {10.1001/archotol.1969.00770020103017},
  url = {https://pubmed.ncbi.nlm.nih.gov/5782664/},
  note = {Source identifier: 5782664}
}