@misc{indiciaec9dcdf74abeb,
  title = {Colonoscopy without sedation.},
  author = {M S Hoffman and T W Butler and T Shaver},
  year = {1998},
  doi = {10.1097/00004836-199806000-00013},
  url = {https://pubmed.ncbi.nlm.nih.gov/9649011/},
  note = {Source identifier: 9649011}
}