@misc{indiciaef3e6f1ea1dd9,
  title = {Headache classification update 2004.},
  author = {Jes Olesen and Richard B Lipton},
  year = {2004},
  doi = {10.1097/00019052-200406000-00007},
  url = {https://pubmed.ncbi.nlm.nih.gov/15167061/},
  note = {Source identifier: 15167061}
}