@misc{indiciaefa711817586d,
  title = {Bleeding duodenal varices.},
  author = {N D Heaton and H Khawaja and E R Howard},
  year = {1991},
  doi = {10.1002/bjs.1800781215},
  url = {https://pubmed.ncbi.nlm.nih.gov/1773323/},
  note = {Source identifier: 1773323}
}