@misc{indiciaec21f760aef03,
  title = {Valsalva-induced cluster headache.},
  author = {Brian E McGeeney},
  year = {2006},
  doi = {10.1007/s10194-006-0345-8},
  url = {https://pubmed.ncbi.nlm.nih.gov/17149564/},
  note = {Source identifier: 17149564}
}