@misc{indiciae871140e591e3,
  title = {Further observations on postspinal headache.},
  author = {N M Ramadan},
  year = {1998},
  doi = {10.1046/j.1468-2982.1998.1810657-3.x},
  url = {https://pubmed.ncbi.nlm.nih.gov/9950620/},
  note = {Source identifier: 9950620}
}