@misc{indiciae9d46757430be,
  title = {Upper gastrointestinal endoscopy--how far does the endoscope go?},
  author = {C E Brady and D L Stewart and J A DiPalma and D J Clement and T W Coleman and K S Rugh},
  year = {1985},
  doi = {10.1016/s0016-5107(85)72249-3},
  url = {https://pubmed.ncbi.nlm.nih.gov/4076732/},
  note = {Source identifier: 4076732}
}