@misc{indiciaebbcc62a5dae2,
  title = {Epidural morphine.},
  author = {C B Collier},
  year = {1981},
  doi = {10.1111/j.1365-2044.1981.tb08608.x},
  url = {https://pubmed.ncbi.nlm.nih.gov/7468967/},
  note = {Source identifier: 7468967}
}