@misc{indiciae7f40438e2db9,
  title = {Postoperative analgesia.},
  author = {A H Masson},
  year = {1971},
  doi = {10.1097/00004311-197100930-00013},
  url = {https://pubmed.ncbi.nlm.nih.gov/4156684/},
  note = {Source identifier: 4156684}
}