@misc{indiciaef7a11f11adf6,
  title = {Behaviour during a cluster headache.},
  author = {J N Blau},
  year = {1993},
  doi = {10.1016/0140-6736(93)91713-v},
  url = {https://pubmed.ncbi.nlm.nih.gov/8103827/},
  note = {Source identifier: 8103827}
}