@misc{indiciae3d53c4aa52a9,
  title = {Upper gastrointestinal endoscopy: gastroscopy.},
  author = {J D'Silva},
  doi = {10.7748/ns.12.45.49.s52},
  url = {https://pubmed.ncbi.nlm.nih.gov/9752143/},
  note = {Source identifier: 9752143}
}