@misc{indiciae8f70dc765ee8,
  title = {Chronic daily headache.},
  author = {Robert D Gerwin},
  year = {2006},
  doi = {10.1056/nejmc060290},
  url = {https://pubmed.ncbi.nlm.nih.gov/16672713/},
  note = {Source identifier: 16672713}
}