@misc{indiciae7877ea99fee6,
  title = {Gastroscopy.},
  author = {J A Gregg and M Garabedian},
  year = {1971},
  doi = {10.1016/s0039-6109(16)39439-7},
  url = {https://pubmed.ncbi.nlm.nih.gov/5314205/},
  note = {Source identifier: 5314205}
}