@misc{indiciae82e1fb1e3671,
  title = {Headache after dural puncture.},
  author = {S M Whiteley and P G Murphy and R W Kirollos and S R Swindells},
  year = {1993},
  doi = {10.1136/bmj.306.6882.917},
  url = {https://pubmed.ncbi.nlm.nih.gov/8490423/},
  note = {Source identifier: 8490423}
}