@misc{indiciae8f2d69909398,
  title = {Postoperative pain.},
  author = {C A Foster},
  year = {1969},
  doi = {10.1016/s0140-6736(69)91622-5},
  url = {https://pubmed.ncbi.nlm.nih.gov/4179598/},
  note = {Source identifier: 4179598}
}