@misc{indiciae578ce03bc874,
  title = {Routine oxygen during endoscopy? An editorial review.},
  author = {M R Smith and G D Bell},
  year = {1993},
  doi = {10.1055/s-2007-1010320},
  url = {https://pubmed.ncbi.nlm.nih.gov/8330552/},
  note = {Source identifier: 8330552}
}