@misc{indiciaeadca1586cea9,
  title = {Common headaches: type, duration, frequency and implications.},
  author = {J N Blau},
  year = {1990},
  doi = {10.1111/j.1526-4610.1990.hed3011701.x},
  url = {https://pubmed.ncbi.nlm.nih.gov/2074161/},
  note = {Source identifier: 2074161}
}