@misc{indiciae427c5a700b6e,
  title = {Middle ear effusion and sinusitis.},
  author = {J J Grote and W Kuijpers},
  year = {1980},
  doi = {10.1017/s0022215100088642},
  url = {https://pubmed.ncbi.nlm.nih.gov/7373122/},
  note = {Source identifier: 7373122}
}