@misc{indiciae633a10899100,
  title = {Does a bloody tap prevent postdural puncture headache?},
  author = {K J Khan and P C Stride and G M Cooper},
  year = {1993},
  doi = {10.1111/j.1365-2044.1993.tb07132.x},
  url = {https://pubmed.ncbi.nlm.nih.gov/8346782/},
  note = {Source identifier: 8346782}
}