@misc{indiciaeb7457f0581fe,
  title = {Headache after continuous spinal anaesthesia.},
  author = {K R Milligan and H Carp},
  year = {1991},
  doi = {10.1093/bja/67.1.130-b},
  url = {https://pubmed.ncbi.nlm.nih.gov/1859752/},
  note = {Source identifier: 1859752}
}