@misc{indiciae2d687b3cb2b4,
  title = {Lumbar extradural analgesia.},
  author = {J F Rickards},
  year = {1971},
  doi = {10.1111/j.1365-2044.1971.tb04832.x},
  url = {https://pubmed.ncbi.nlm.nih.gov/5111651/},
  note = {Source identifier: 5111651}
}