@misc{indiciaed1f1a905e7f9,
  title = {Optimum opioid for extradural administration.},
  author = {T M Cook and C F Stannard},
  year = {1995},
  doi = {10.1093/bja/75.2.250},
  url = {https://pubmed.ncbi.nlm.nih.gov/7577265/},
  note = {Source identifier: 7577265}
}