@misc{indiciaeaa82f714fa74,
  title = {Mechanical headache.},
  author = {J Travell},
  year = {1967},
  doi = {10.1111/j.1526-4610.1967.hed0701023.x},
  url = {https://pubmed.ncbi.nlm.nih.gov/6046093/},
  note = {Source identifier: 6046093}
}