@misc{indiciae97a56ca58b27,
  title = {Cluster headache without autonomic symptoms?},
  author = {M Vigl and K Zebenholzer and P Wessely},
  year = {2001},
  doi = {10.1046/j.1468-2982.2001.00282.x},
  url = {https://pubmed.ncbi.nlm.nih.gov/11903290/},
  note = {Source identifier: 11903290}
}