@misc{indiciaecc44b6969292,
  title = {Cluster headache.},
  author = {M Anthony and J W Lance},
  year = {1971},
  doi = {10.5694/j.1326-5377.1971.tb87979.x},
  url = {https://pubmed.ncbi.nlm.nih.gov/5577267/},
  note = {Source identifier: 5577267}
}