@misc{indiciae70392205ca6f,
  title = {Headache: the spectrum.},
  author = {M P Biber and C A Warfield},
  year = {1984},
  doi = {10.1080/21548331.1984.11702917},
  url = {https://pubmed.ncbi.nlm.nih.gov/6434561/},
  note = {Source identifier: 6434561}
}