@misc{indiciae598b6aadb40c,
  title = {[Upper gastrointestinal hemorrhages].},
  author = {A Badell Urdaneta and A Villasmil Morillo and A Prieto Núñez},
  url = {https://pubmed.ncbi.nlm.nih.gov/4201405/},
  note = {Source identifier: 4201405}
}