@misc{indiciaeafe7c543785b,
  title = {Gastrointestinal endoscopy (2)},
  author = {J F Morrissey and M Reichelderfer},
  year = {1991},
  doi = {10.1056/nejm199110243251705},
  url = {https://pubmed.ncbi.nlm.nih.gov/1922209/},
  note = {Source identifier: 1922209}
}