@misc{indiciae5dc259589e17,
  title = {Cluster headache: imaging and other developments.},
  author = {A May and P J Goadsby},
  year = {1998},
  doi = {10.1097/00019052-199806000-00002},
  url = {https://pubmed.ncbi.nlm.nih.gov/9642536/},
  note = {Source identifier: 9642536}
}