@misc{indiciae02d52b4fe8b9,
  title = {[DRG exercises: perforated duodenal ulcer, peritonitis].},
  author = {R Bartkowski and B Endrich and M Siess},
  year = {2002},
  url = {https://pubmed.ncbi.nlm.nih.gov/12599310/},
  note = {Source identifier: 12599310}
}