@misc{indiciaed776f3234859,
  title = {Monitoring during endoscopy.},
  author = {J A Church and G N Kenny and J R Anderson},
  doi = {10.1016/s0016-5107(90)71149-2},
  url = {https://pubmed.ncbi.nlm.nih.gov/2227345/},
  note = {Source identifier: 2227345}
}