@misc{indiciae5c55b5265aed,
  title = {Chronic daily headache.},
  author = {Susan Hutchinson},
  year = {2004},
  doi = {10.1016/j.pop.2004.02.007},
  url = {https://pubmed.ncbi.nlm.nih.gov/15172511/},
  note = {Source identifier: 15172511}
}