@misc{indiciae484a6de5e4dc,
  title = {Upper endoscopy for occult bleeding in renal failure.},
  author = {S Gupta and D L Walker and A Keshavarzian and H J Hodgson},
  year = {1987},
  doi = {10.1097/00004836-198702000-00011},
  url = {https://pubmed.ncbi.nlm.nih.gov/3559112/},
  note = {Source identifier: 3559112}
}