@misc{indiciae5066ef98bcbf,
  title = {Upper gastrointestinal endoscopy in the elderly.},
  author = {S P Lockhart and P M Schofield and R J Gribble and J H Baron},
  year = {1985},
  doi = {10.1136/bmj.290.6464.283},
  url = {https://pubmed.ncbi.nlm.nih.gov/3917787/},
  note = {Source identifier: 3917787}
}