@misc{indiciaea951540ccdd0,
  title = {Headache following halothane anaesthesia.},
  author = {M F Tyrrell and S A Feldman},
  year = {1968},
  doi = {10.1093/bja/40.2.99},
  url = {https://pubmed.ncbi.nlm.nih.gov/5645764/},
  note = {Source identifier: 5645764}
}