@misc{indiciae28d9d86de95f,
  title = {Unsedated endoscopy.},
  author = {John J O'Connor},
  year = {2005},
  doi = {10.1097/01.smj.0000157553.86248.ad},
  url = {https://pubmed.ncbi.nlm.nih.gov/15898536/},
  note = {Source identifier: 15898536}
}