@misc{indiciae270c0808ce3b,
  title = {Headache after dural puncture.},
  author = {P Barker},
  year = {1989},
  doi = {10.1111/j.1365-2044.1989.tb13608.x},
  url = {https://pubmed.ncbi.nlm.nih.gov/2782581/},
  note = {Source identifier: 2782581}
}