@misc{indiciae9d5f2199fe7a,
  title = {Sinus headache: a clinical conundrum.},
  author = {Roger K Cady and Curtis P Schreiber},
  year = {2004},
  doi = {10.1016/s0030-6665(03)00181-6},
  url = {https://pubmed.ncbi.nlm.nih.gov/15064062/},
  note = {Source identifier: 15064062}
}