@misc{indiciae602570f9116e,
  title = {Bleeding peptic ulcer.},
  author = {J A Shepherd},
  year = {1970},
  doi = {10.1136/bmj.2.5706.424-b},
  url = {https://pubmed.ncbi.nlm.nih.gov/5420619/},
  note = {Source identifier: 5420619}
}