@misc{indiciaed167b0e33034,
  title = {Epidural opioids for labour.},
  author = {E McGrady and A G Davis},
  year = {1988},
  doi = {10.1111/j.1365-2044.1988.tb06714.x},
  url = {https://pubmed.ncbi.nlm.nih.gov/3414937/},
  note = {Source identifier: 3414937}
}