@misc{indiciae9acaa8e0d1ed,
  title = {Chronic headaches in general practice.},
  author = {J N Blau},
  year = {1983},
  doi = {10.1136/bmj.286.6375.1375},
  url = {https://pubmed.ncbi.nlm.nih.gov/6404465/},
  note = {Source identifier: 6404465}
}