@misc{indiciaee50694ab05ac,
  title = {Pain after thoracic surgery.},
  author = {E Kalso and K Perttunen and S Kaasinen},
  year = {1992},
  doi = {10.1111/j.1399-6576.1992.tb03430.x},
  url = {https://pubmed.ncbi.nlm.nih.gov/1539485/},
  note = {Source identifier: 1539485}
}