@misc{indiciae3ce77ba0218a,
  title = {Gastrointestinal endoscopy.},
  author = {A I Neugut},
  year = {1992},
  doi = {10.1056/nejm199204023261414},
  url = {https://pubmed.ncbi.nlm.nih.gov/1542354/},
  note = {Source identifier: 1542354}
}