@misc{indiciaea6b5084c5372,
  title = {An efficient technique for performing extradural blockade.},
  author = {M Sosis and I Ahmad},
  year = {1984},
  doi = {10.1093/bja/56.8.928},
  url = {https://pubmed.ncbi.nlm.nih.gov/6743460/},
  note = {Source identifier: 6743460}
}