@misc{indiciae8c3fa2ac9048,
  title = {New international headache classification.},
  author = {J Olesen},
  year = {1989},
  doi = {10.1159/000110166},
  url = {https://pubmed.ncbi.nlm.nih.gov/2922098/},
  note = {Source identifier: 2922098}
}