@misc{indiciaee7daa9b4e311,
  title = {Lumbar puncture headache.},
  author = {D W Coombs and J G Porter},
  year = {1981},
  doi = {10.1016/s0140-6736(81)90431-1},
  url = {https://pubmed.ncbi.nlm.nih.gov/6113456/},
  note = {Source identifier: 6113456}
}