@misc{indiciaee254ced2e5e4,
  title = {Cluster headache. A review.},
  author = {L Kudrow},
  year = {1989},
  doi = {10.1097/00002508-198903000-00007},
  url = {https://pubmed.ncbi.nlm.nih.gov/2520382/},
  note = {Source identifier: 2520382}
}