@misc{indiciae719a6f87d7cc,
  title = {Cluster headache.},
  author = {N T Mathew},
  year = {1997},
  doi = {10.1055/s-2008-1040944},
  url = {https://pubmed.ncbi.nlm.nih.gov/9474711/},
  note = {Source identifier: 9474711}
}