@misc{indiciae345f456e7c31,
  title = {Colonoscopy--a new view.},
  author = {C Williams},
  year = {1979},
  doi = {10.1177/014107687907200702},
  url = {https://pubmed.ncbi.nlm.nih.gov/552543/},
  note = {Source identifier: 552543}
}