@misc{indiciae19cf1936697d,
  title = {Operation, anesthesia, and the endorphin system.},
  author = {D B Carr and M T Murphy},
  year = {1988},
  doi = {10.1097/00004311-198802630-00005},
  url = {https://pubmed.ncbi.nlm.nih.gov/2844678/},
  note = {Source identifier: 2844678}
}