@misc{indiciaea5c5ceafa0d9,
  title = {Perforated peptic ulcer.},
  author = {J A Shepherd},
  year = {1968},
  doi = {10.1136/bmj.1.5592.625},
  url = {https://pubmed.ncbi.nlm.nih.gov/5637575/},
  note = {Source identifier: 5637575}
}