@misc{indiciaecf1c0ff80b2a,
  title = {Post-dural puncture headache and spinal anesthesia.},
  author = {A Ross and P Popham},
  year = {1994},
  url = {https://pubmed.ncbi.nlm.nih.gov/8063446/},
  note = {Source identifier: 8063446}
}