@misc{indiciae93522cdda783,
  title = {Upper gastrointestinal endoscopy: a prospective randomized study comparing continuous supplemental oxygen via the nasal or oral route.},
  author = {G D Bell and A Quine and J H Antrobus and A Morden and S M Burridge and T J Coady and J Lee},
  doi = {10.1016/s0016-5107(92)70424-6},
  url = {https://pubmed.ncbi.nlm.nih.gov/1607083/},
  note = {Source identifier: 1607083}
}