@misc{indiciae2df5969e81b7,
  title = {"Open-access" upper gastrointestinal endoscopy.},
  author = {K B Orr},
  year = {1986},
  doi = {10.5694/j.1326-5377.1986.tb112335.x},
  url = {https://pubmed.ncbi.nlm.nih.gov/3713597/},
  note = {Source identifier: 3713597}
}