@misc{indiciae8d81a508c107,
  title = {Perforated duodenal ulcer.},
  author = {S L Wangensteen and R C Wray and G T Golden},
  year = {1972},
  doi = {10.1016/0002-9610(72)90216-4},
  url = {https://pubmed.ncbi.nlm.nih.gov/5025290/},
  note = {Source identifier: 5025290}
}