@misc{indiciae5b8a1e85b14e,
  title = {Emergency situations: acute upper gastrointestinal bleeding.},
  author = {M W Dronfield and M J Langman},
  year = {1978},
  url = {https://pubmed.ncbi.nlm.nih.gov/305800/},
  note = {Source identifier: 305800}
}