@misc{indiciaef8795c789ef4,
  title = {Office procedures. Esophagogastroduodenoscopy.},
  author = {T E Norris},
  year = {1997},
  doi = {10.1016/s0095-4543(05)70396-1},
  url = {https://pubmed.ncbi.nlm.nih.gov/9174042/},
  note = {Source identifier: 9174042}
}